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 0x39b29415725fd63cb3216c00c474878934223669fabdb2dd8ae8df68d04affaf. 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/cdab4fe4-cde7-4f07-826f-c80dc6819f62.json and https://artists.proofprofile.net/proofs/artist/cdab4fe4-cde7-4f07-826f-c80dc6819f62.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Beber, Cair e Levantar - Live In Brazil/2008
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 0xdb297823546ca7b1310c8633005d1b931f1af6e4b574f0ea7d8eefb242d1524c. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/BRN060800040.
Marcelo Marrone (Ao Vivo Em Eunápolis BA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e73f81e0470fe91704e6c3f87ed633473adc2594828296d7d8e918ff5d094b8. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:23:48Z), 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/QZMZ92058054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982f97db60c385f930e2288985877e054819eaa06779fb887ff914fe5a5eadf2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZHZ42242371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971ef514d4ec67e01c8124da3f1a543c027e697e97071a5c39b1c8d7d08fa537. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZHZ42242375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa785eeee7462350a0a8e10bf8e4e7996da76515bd174575e736ea02529f37e7a. 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/QZHZ42242376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2478038d0bbac56c2ce3632cdc471667247788d2057e14aa1b1331dba1d16718. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:44:09Z), 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/QZHZ42242377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec943a0a7555613017d2112b0054ab1468f1712adb5e42c773b2ee5c42aefc1f. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:01:10Z), 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/QZHZ42242378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753e3bb155bd6285b00bfaeec935c718fceb647f315cc9431f8f508c2ea3dc09. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:32:33Z), 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/QZHZ42242379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dc27d3e58e00a2d3a48043250812dae5608dd59b799ce09379095917f2e675c. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/QZHZ42242380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb184c828a9682daa935c7752837ac1e1cb989492174651b724c4676bbdbb0ea. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QZHZ42242381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x962a2505a8619b40e535b474e81bbc0cc17fec073b18f43681d6883376c9ea14. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:57:47Z), 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/QZHZ42243792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee8ba00119eff76a21e8e67db2e4b05d59511a6ce65ec4e4d3f3be19bfdef21. 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/QZHZ42243794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9bdd385f332660dc9607e7e808990da5513b9494448e5bc64d64ddea567cd6. 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/QZHZ42243795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc68e79e2e12bb59784946d7f4d693957d6fca5b732157748fb864fff04bd323. 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/QZHZ42243796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05907e24645077ad0b4c1a2decd5f7f2ba2b84f7cedae680e2e82595f2d34584. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:44:31Z), 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/QZHZ42253975.