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 0x382c8a2dba411785c14d324983b4bbe256d17f83c0d9fa79f76f589978466d8c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4031aaba-6a02-4346-9225-232f9bbe0d6e.json and https://artists.proofprofile.net/proofs/artist/4031aaba-6a02-4346-9225-232f9bbe0d6e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x0f8f27a81265f2dfb905161925eeb67ff18e3563f7c06fbe9a063cbffcc3db5f. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZZ8A2463957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4b3085a69cb281f299510656efd9684c768c3402814b17557fe173ebae13bd. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/US7VG1828166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28ac5fb649c0a7a404e1f671d2eeba498b9329714b15b74ce9f95ba72673b471. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/US7VG1828170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfffa9f2d0bd031b1e9d328b836808aa4ddf65501d0085b8e688a817db0f49128. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BOA081900211.
YMCA / No Puedo Quitar Mis Ojos de Ti / Gloria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf335b9fed49e08f2255bb48d0dbfd8c0b0ce6fc8c8eaadbbf7e85e54a9d5b015. 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/BOA081900214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65051f52a26c62b6848678b946060eee2f4832000fc56ac533c70a8d06d15f17. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/BOA081900215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecfa8f554ab4327086b39704d207ebd46c436beda0c203a723ecb02fda750f9a. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:50:30Z), 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/US7VG1940947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416e2f861aa2a34a102372d822be62a848cde9325abb59ed9994a9fed128cfe9. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZHZ31961914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9767c3bc554ee1837efa6c4b6f4009a69be815900d324d0f4a942ec4531eb6d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZZ8A2463425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d2f70ad3b38d37ee2b237c1431a3ad33f867fbcd2aa3b863fe1112f0bad76e. 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/QZZ8A2463431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30c80b142344847753baac5a14d288ed08f4a4e38c59cfa531d28b2d10f2b79. 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/QZZ8A2463432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61238f32325f75e7a2361a77a36001d7b80ba6d24440710a270032b4a145658. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZZ8A2463437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x333a9436a7dd6df84c36b2f471e98b68868cfc651497931e3775eb3126b6642b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZZ8A2463439.
Orquesta Internacional Guachambe 2019, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e9455b675893eaa1c106473ba289e0b5e9f0af24f789b93216886273778ffb. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/BOA081902202.
Mix Americo - Tendria Que Llorar Por Ti - A Llorar a Otra Parte - Te Vas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd6197298f51017a4591cb630f030348f568136b01684345332afb8cd9e97b45. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/BOA081902215.
Mix Selena - Si Una Vez - Amor Prohibido - Como Me Duele
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6950a1d0b5b40209b65f7d1b82cb4fea2ca2fd1caa24cd881ac9453a78cf81dc. 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/BOA081902216.
Mix Pk2 - Compromiso - Si Pero No - Cierro Mis Ojos - Quedate
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc80a48884ab3dcb735a8befbb2f67c0a88c5be9da2be74de2d506c0c38e2293. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/BOA081902217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0719386180288fdde5f43a17d25326c16dee6361e3f27ed198e326751ce5889. 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/BOA081904303.
Costumbres, Amor secreto, Mentias, Amor de tres, El liston de tu pelo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x710c081c502025656a27a517d75cb189bce53740307768c3717107bd5a4a1a02. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BOA081904304.
Que bien se ve, El eco de tu adios, Si te vas, Todavia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29324cbbd69ae3b79509db27a42e74b6fb54d5f66c1546b741f0ac5334afe757. 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/BOA081904307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12851dbd210658667742f905d87254b744cb89419522dd0cc54f48dde3bf6dca. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:02:30Z), 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/BOA081904309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x889572a411ab2bdf81746e8490a32c5b801913135aae340f57a55490ae41a28b. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BOA081904314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc772c025ddfe86d4d85447b175bae7a424f6be094830c6e6cdc3ba40e6b94c7d. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/BOA081904322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cf2270cb5feec245d900564825a539c9ca755a48a8784d02a1c00a24fe51f61. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:07:33Z), 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/BOA082101112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2165b02cb8294c2f654b1acf7dcfd4395a65ef72c530d52a5c7dbdae6082d0. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/BOA082101207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf789605782db774e855e95fc5c839bb25c490f78587bc76e9c36d2ff5bd2b54a. 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/BOA082101401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x599bf6a22aa9a651ca53fe77af27c19160c152998e5433141a103f6e3dbeba2c. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BOA082101402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959c281b15a8dd8a51c7942602ee56cdbfb0bba8355df77ef3ee125198a79ebd. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T13:08:13Z), 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/BOA082101406.
Mix Juan Gabriel - Asi Fue, Por que me haces llorar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x098509f7ff56953b87cba1e59142529a5b612068a5970c4af837965932dae890. 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/BOA082101408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba1657ec5fa6188ba9bf64fc35ab42e7a1eb33da9efcb0b7fb9a357b59436fc. 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/BOA082201101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b566f3213f173f4f251866a837404e6241261e6b09b09721f741ae4da290b6d. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:01:21Z), 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/BOA082201102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d2c29f2410e1bc9467974795705e279c9f5c130d2aaab7aa0d41f293ef3641. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:55:56Z), 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/BOA082201103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94884e5cd73adaf9ad4ca09b0bd3d44b6e44190350fb1b246b6a41306e02e5fe. 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/BOA082201104.