Gabriel Contino (born March 4, 1974), better known as Gabriel o Pensador (Portuguese for "Gabriel the Thinker") is a Brazilian rapper, writer, and composer known for his conscious lyrics which speak o
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c462d46fdd2054f00c67ee1f9c26ba1f5d49c436578912873c05ad214203d25. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa054cdc-88c6-4d2d-b868-d4f8825be571.json and https://artists.proofprofile.net/proofs/artist/fa054cdc-88c6-4d2d-b868-d4f8825be571.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Abalando / Prá Não Dizer Que Não Falei das Flores / Cálice
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee540e5db7f804fe8389feedb90c1267b4b30a7a6b8174895eebaf8ed34811a0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME9300293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x036e7a024fc64313374cba64233196958f47717e05da5c6b8da9aa9404353c1a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME9300298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8dde5f116435028d43bdc0f1bab13d9e98d4a3d1c44a48903f9ee1f7ed10e47. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME9300301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46fc07ce52ec9ecfa60debf8b852d8d119257cc43fd15c73cbf5f32919c8e1f0. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME9300302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f82f0e88ea9b5e3beec162452247fee5e3ff7c37ef825a9f347dd382d11625f. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME9500205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9682d5a57b3231d4e11b4d3cdd62988889db8e43971a5d81adb7f114d3cc2600. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME9500210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d053e0e2503424c19e037afdfd2041cf08f63a41ee7eaebf7ab466eb8396aae. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME9500213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61c5e3fd291405db3ed658c0772bd607bacada3a46fa6149c068aac3494fdd3. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME9500214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09f23b91dd441a3777e9369f2facb913b8d0765b625656b0ca996bccfc9555b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME9500218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d63b58532d09109d32929b150bbbdffeabf131393ae5cde4bcc3cf11a2ac1b. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME9500221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe3f8180670ee85eac7a6c071076d762902c0a0091cafee8afaf9b23bf10091. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:29:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME9500225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000f731e86c233209fb5c7c298efbdf87e6b47e45a2f0ec81ec54b745fa65ecc. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME9900522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24cfaeb84fe2297b03e512eb277f1cca170f4b5794d898557eeb64e6d76ce2b. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME9900526.
Amigo Urso / Resposta do Amigo Urso (feat. Moreira Da Silva)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa64702e51aae6fc1e6c7510c68b87bab1723f0a8ddf7c13e3c60481241db9df7. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME9900528.
Não Dá pra Ser Feliz (feat. Daniel Gonzaga)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x050502f3abde246f754f6b5829d3256a19d8f6642a42d486be01a010e663b43e. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME9900529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x693d3cf49f51654e66e0af5551559a79a09b6a4eb14a445cbc635bcf1e35884f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME9900531.
Seja Você Mesmo (Mas Não Seja Sempre O Mesmo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ce44cece5376ddaf948228f3ce1b41e9de1481c36de5d53e190574a64a2e497. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME0100241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cca8b3040c031982e59e8aac9898ee059406c9cf20c936da286b9a91aff8183. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME0100245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd3fff346872a7e6b3761e3781698fed5cacb016c7443d1f313bf60a381f0983. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME0100247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2f8bedfef5683fa06f5822d0e028382c00635450c92c480c709fe491ada4e9. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:43:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME0100248.
Tás A Ver - O Melhor de Gabriel O Pensador
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd08b4ab95934d5cc0aa62b8c5d9061900a4d4391d978a02d6bbe7d480adf49f. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME9300297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd9a61e10cd615bdbc1d37fe3a86f63737858a3e7caae5d58c2f277327cc443b. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME9300295.
Festa da Música / Bye Bye Tristeza / Devagar, Devagarinho
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59432355a1e81d83fd1b6c8619414762e63e5bc5d22e281ca71f6803873a48d9. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T19:07:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME9700243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c4fa0030c6ad282ac97b3f71d432b496e4433adca04143bbd0701eeaa71d53. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME0100240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b928c21564e9001937c73c0c1200dc11bc8507da094926832accf0d67d5470. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME0300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369cf1a52ae86f21b9149d63bd59d21df7350e35d7dad9d9f3719ae6f6e99d6b. Chain 2 (Bitcoin): anchored in block 957767 (2026-07-12T22:25:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME0300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe2e3419099f13ada464980f054817941c6eb7ac3cef48a7bf1a852fdfe9630f. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME0300013.
FDP 3 (feat. Jorge Tito & Aninha Lima) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13afc4ce18dd8bdfe90c70f3b84eb08266625501757c0013939857495647ed5c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME0300015.
Back to Back: Abalando / Indecência Militar / Tô Contigo e Não Abro / Mentiras do Brasil / 175 Nada Especial / Esperanduquê - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x276dd14e79b3abd22e50210587653b3f1651a49deba2e7fe76c2949b6dbec37a. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME0300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf72d45558cf121e4ef3001d1c043ad1353e36ffbb7c73998bf4c0d2d1b5c2b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME0300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dbb9c4a19e02233c341a5f807cc1c704279fea66bf29145a29ee7aa2f873ac7. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:25:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME0500110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427066ac3a89f5dcdc699a3467bef63b3a673f301489dd060cb12683c67ee545. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME0500156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf066d8c98770f76b804837a09b82b5ed4c50582ad9f96bf7345b557eae3f31fd. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME0500157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9431eb33807785c1533ff3f59bc0fda1948965720023e6c24eac3882f5394b9. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME0500158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9766e1f9a156cea301361051ea3497f6af5ffa7cef228303bd12a734855208a9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME0500159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8310799058ef72dadc1baa79d51560e62cc9b2dd439e51da3fad9cec0f8e2df. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME0500164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd19596ae069e025057380377ce2a0f91433ba4c5cd79156ea2f9d0de341e41ea. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME0500161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5978117480f01f2dc31a01d76ec76896f3f49f4087e5dc45f7f3dc173fa9bd00. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1682752.
Solitário Surfista / Surfista Solitário (feat. Jorge Ben Jor) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc44b19b187ab1a25fe0838f4e361cbd347ebd17dc541a7e211e87ed58573b4. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1682754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e5b19f89014114c551ea073cc62e3fa16b26b1da35e10519e6bd6c6e55a167. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1682755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84eb4d77cb9d29bc9c306aa4a739a23f27019a070e73c5d07ccd8b7f31d32a5d. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1682756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7751bfb7d449ae586edf63356fb1487ed0f0e5638c37d11550127e90197878. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:56:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1682759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a47c8e0e293fea8274c9b45c2297b0d06d083d2dd70bfb09ea485a65386f3a. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:02:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1682762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c8991853475505bf7b4668daf1259059eb397cbcc6f1929f62ff706264ad90. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1682763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5499af8d0d8b76576807139b1641367312e93d89ee185e1276ba03e0e372d96b. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:13:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1682764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x852913493c54c7d63d54c7f4d38168f28f8c162fd545e1a3c6ff7e48721b6f76. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:38:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1682766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d0a5dd96fe9a4fae94ae1ef22137c8725856a39fb333fc5b3b90ab4f6feb6d. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1682767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa296274281759d5b287433c53eb9765928e4347b344dfb59e8d6e45bcc4d331b. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRHPH1800001.
Tô Feliz (Matei O Presidente) 2 [Ao Vivo]
Tô Feliz (Matei O Presidente) 2 - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x792031737ec0e4c93d4ecf03e32145f61dcccb2f5e90590379dcaa43c3143036. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:41:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRUM71900026.
Fé Na Luta (Incidental: Dias De Luta, Dias De Glória) [Ao Vivo]
Fé Na Luta (Incidental: Dias De Luta, Dias De Glória) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d50eb5798ee8cce63ed31b4c12ce2ab887b2ee163c51e463d3288d2d36430d7. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRUM71900027.
Até Quando (Ao Vivo Em São Paulo / 2018)
Até Quando - Ao Vivo Em São Paulo / 2018
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb5e8e971da4287d88981ce11c0d757e765aa5fc339a51a70fcb9cbbe651a6d. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRUM71900028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3fc53ae01135ed8937813e755a16b8f18222eae4816428e8ea69a455519d8bd. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:34:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRHPH1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbb3d0537be76cca7e29ea813f24da49c9e0f5c6378f5942d4281ce3f91b30f2. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ31962260.
Abertura & Encerramento.1 - Um garoto chamado Rorbeto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x808026f24d837b913a65254669a510ec35b5e1009ef5cb5dfc682917cc7b6bda. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEWI51346275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593a387922785b48ff482646fecfb60195f9305389c1df629051fb6942f9867f. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:31:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ42024728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d6ec7f882e3a83bfc310a202c6057590bec3d97b94c86c4a5e6eb3f78bef818. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRHPH2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d43a13da964a81f4820e86731deacdb5bf92f875cfd9bd36e967294cf86ce79. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ62000127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68c446f43a82bdb993e7838f06df665c18280affdb214bd8abb1dc1f0f5b898. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRHPH2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41145d1dd04df97e8af5ca1be3d241733b2f70870302ade02bbfb3f61613dd7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXUS62100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a62cedc7cd62574be9bd3bace8bce7ef9075557e1c72c1d9023af2ec761a164. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRHPH2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa759dbc873579897a282b1eea83209452e74e8828ede0f40b4ec97daeb6cb12c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRHPH2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee5fd44a1da3ee85697ebf727ce02813c3d6f2dfbc94f69e3888592448b251a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRHPH2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c269928dce4983c19d48c79ba6002f3f717ad100f3090a2861af8d299b4e9f6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRHPH2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d1e6a615e322bfde427e5a4a43f40b19b8452d6f883427c8c7bb7c2de68fa1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRHPH2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x175b7fb3365a92fe1b98a425c558ef4cf118546e8b37770775f64c5f333c95f9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRHPH2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04aefe5e9d64e85cd7037d7b4e012a9585dd54c37e30122a642d13dab22154db. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRHPH2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe71d7a0ef3ac57a9c20dd6e3d7450e5d18a0e775a602b94d7bd4b591bf38e5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRHPH2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f831969ae9fd9a7e0e9a9da7c36ad5a0de5e833e97e3963071fd8f0beb2305. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRHPH2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ecedb6366498023d99a894cefa19dc45a308d66ef534f6c1e3465dff80083d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRHPH2300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf00abd6eabd88f74b72b7b7a4e1aabcef8b564b7cd2c4cf38e17a1bd2cc9b607. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRHPH2300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5352de2eb8a9a295d171aa4d74da917b0ac1e3532b6adaaf2aafce76d443d484. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRHPH2300010.
Isto anda tudo ligado (feat. Da Weasel & Gabriel O Pensador)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468a73571acac136abee2b7fde0684ed9ce66d585dd599284cedc3d846374bef. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTEM10300087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x222864afd5ecc8c55abbfe9a8bdbc4de0771a2d3323c34f190dea3a276cd37cb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXIED2100147.
Exttravasa (Extravasa) / Rap Incidental - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bebb9aacd899e527f8e89a435b7eb13ec8844cbeabed6c0de7b7d49dc68810c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRFA50800024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b59f79dc6d418e81631340be48cf74cf17cac47bc1b01a6296193625089227. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRUM71002311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9401f509a6e209f2a1e93baa9bd85e598f4f6cd4e36fe66d3f4e044fcf230cdd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME2100713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9401f509a6e209f2a1e93baa9bd85e598f4f6cd4e36fe66d3f4e044fcf230cdd. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME2100713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41145d1dd04df97e8af5ca1be3d241733b2f70870302ade02bbfb3f61613dd7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXUS62100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf848f3a7f2fcd8e3453ae7b649678deafe538ca6ca307a3b476f6b4a4afbb3c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRUM72000984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd9c9ad7e14a907dab704cabfc2efb55f0d6532a3c92a2135a874d014189f0cf. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF411100724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e190849d3f25600f4aa2835610e37e84fc63063ee59dc1a4c0ea0c9c469ce5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRUM72202270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e190849d3f25600f4aa2835610e37e84fc63063ee59dc1a4c0ea0c9c469ce5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRUM72202270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe581500d63215bc629e5d236adfef6925412d48ad3106bbc059446e8d1572379. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME9900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f544b75976847720d017a8bbc3114fa5956cf2059215a2b871ecab4edfc69b9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRRGE1810092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ebe08dd331dcdb747ec28004c4b0807664b7ccbdb9ec399fd91140b78201bd9. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME0100239.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch