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 0xf0e273bbe612255467da0ffe1563f871aada11c8951fd4f0222a03bd10ac0937. 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/48de44db-30f0-4b28-8dcf-cdcfac8cebce.json and https://artists.proofprofile.net/proofs/artist/48de44db-30f0-4b28-8dcf-cdcfac8cebce.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 0x3868120dcb711bbb1cb4400b9569a619b11018ceff4b8408ae60343b3ac999ba. 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/BRMVP0301361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03740ea98429fe004c532e137c16bad2d15aec4addcdc97a5fcc23b633918fe0. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/BRMVP0301366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ee8ec763e4193f66a8c29e3749065ec02f7284337b2b90003f678cb7cb93aa. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/BRMVP0301368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca4d5cc04a56229f812ac4102e87e308e9c36f39576b41cb4cb8d7e20fcf491. 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/BRMVP0301374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f4d9dbf137fae3b60bb2a6cc9e98bf775b198048b536c95b456f07773530ec. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/BRAPI0201033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2fdc3c11367254487e4ff84ec4c416d0b33adf47a6d4435b206c918e7af9dd. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/BRAPI0201034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0140da37c9e1b9f578b29b1f573cdc3f559fae5d042522c6d66a37cf67d8727. 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/BRAPI0201007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430fdadf8500e263ed1535c77e20ce72abcdde4ce7bb980d461af162e2f921e6. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:06:14Z), 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/BRAPI0201006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251d2cc49a6e731c31c341797fdcb43064c39d0150e82e71f4f4ae53f16afba3. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/BRAPI0201009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec59d478f85e916e5124020574216b37b0a7188d0aad5b17869bab59d2b77f4. 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/BRAPI0201046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b08faab33ddc023289f58939354aa4a04a6f2bf220bdac2e37fdb71f84f553f. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:09:02Z), 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/BRAPI0201036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16728f44f43471350221794c1dec252d48b7ac3c6363530b2cc1adc232670443. 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/BRAPI0201041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b89162f9c8cb2755025c40720e93fb3b65895c9ec892f8ce6b300ee749dd54. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/BRMVP0302013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf4a327b43a264943b23ee412596022ef68016414fd87473744a085e7df1ddc. 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/BRGDT0400501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dceefb6f36190cf953f23fdf15bd2861d0f735bfd2d0f1ffc5b0ec32f0bd984. 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/BRGDT0400502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9658fbcecfcd9bb5e3b59d3c7add26d2c65796c158c568f0952cd791cc2634. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/BRLSR0301878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83dad7a833cad9b0ef52d01ec23f754d3c96c5fad88bf03657786e633fbb7894. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T17:39:31Z), 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/BRTWI2200388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7327fc4eca848da67a43ae95965ec4549cfb7519ae8def5d6d9503b08d71759. 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/BRTWI2200399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7331d935072e3b738f6a044d360ff6ab5a6e021c47ef33e3afb6eb3a9af03497. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:12:25Z), 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/BRTWI2200400.
Minha vida (Participação especial de Zico & Zeca)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80a0142a38c3f55bf708cdcd273a6612e7a271899bd076c9d81f7abeb0fe1572. 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/BRWMB0300358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75da209fc640f807dd9504cab57cb0cb64dd84e7fc08073a2bd223121eb7e162. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/BRAPI0201032.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea6536578ebfc74c7a1a382ba236350034fa50df69ae002121b4b3deec23daf. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/BRLSR0300563.