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 0x22bac869239f659c3d906b160f8fef62801310bfec561d6ceff902cec139921d. 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/2c5539eb-e85a-4829-a0b3-293843ee05aa.json and https://artists.proofprofile.net/proofs/artist/2c5539eb-e85a-4829-a0b3-293843ee05aa.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 0xce969fb4fa49b8791a66e404c63566265742d1bed29c06419e38d97d4ddbb350. 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/BX4RG2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e264f4ccd7be3d6747a56b8798f1ff28b4bf9f0b73768c891c834157a881f7. 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/BX4RG2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaccbb205a8a1720737a079df8ab9d701fb0360c614602d4a30d294863bc49600. 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/BX4RG2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e264f4ccd7be3d6747a56b8798f1ff28b4bf9f0b73768c891c834157a881f7. 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/BX4RG2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e79a3425e69cdfae0882987abb8f7cabf67801219ba47960e441150333d21b0. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BXGOV2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775cad467ed036f68501174d77a7ad4569e4fc8cc0645df4a5d996c695b12907. 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/BX4RG2000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa7b07312d8423fa7b62eb47ab4fe213568dec0fbf9dc569dd0fc7cadaffb7c. 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/BX4RG2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad1faaea50ae2e3a9df5175b499ff587d0cc4682bd478c8e584fa5069cf13d29. 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/BX4RG2100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c408cf1dafd1909887d81d92e35ca1ae28364090260b8bf5cbedf04df1b6b2. 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/BKD7I2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54509230c18344b44215a42bd3924841fb9d1df08ec12cbfa4a21438e1da4a69. 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/BC6GH2200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846282ee0d258294dc2d1efd4e38e96bd0fdefcf9d53257a525546edcb92ebb8. 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/BC6GH2200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a927a4a466788b26f13a0fc7bb89aaa75f0ce27d4946aefad74391a8ef04d8. 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/BC6GH2200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c7c776eefff99963617c85e01891667392ad256bff5132b191451bce3c1075. 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/BC6GH2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa7b07312d8423fa7b62eb47ab4fe213568dec0fbf9dc569dd0fc7cadaffb7c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BX4RG2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad1faaea50ae2e3a9df5175b499ff587d0cc4682bd478c8e584fa5069cf13d29. 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/BX4RG2100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc25d9f9a7d9a30ea33bcc6abae7e5c451515fc7b41e7f49bd8289ba29f66b321. 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/BX4RG2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec05040f1d59613507a4addd3acea0bf8267bd749c21eabeeafd26a68c9d6b5. 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/BX4RG2100001.
Filhos Do Risco 13: Complexo VP (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec7924efe9ab0ae64f56deacf5abe15535bb689c85ac330e32f2bb5f5d94f766. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BCE7P2403210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5fc42e9c8aee90eaa9b5ea5296315e9b871f1e46e6701a0bd4242260d53025. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BCE7P2402470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x041d92a1afd387af996ad337c51b2c27f194c22fd93faf8570cfd8952f313ca5. 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/BXQHQ2400047.