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 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 0x45e26534c258ccc47c2908c25414e4c868cc5d0171d93e0ba6f4fd890aa17e9b. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/acbd13e0-0d3b-428a-a52a-9ae0d2020f3a.json and https://artists.proofprofile.net/proofs/artist/acbd13e0-0d3b-428a-a52a-9ae0d2020f3a.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 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 0x8e3421ebe78b6ca6c91526a5e4a87abb99eb8084479f686cfff1aa9f3dada734. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/BGA271500035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1478da850ca5c25d0a8ed0385e2dc45e2b89dae82eb5942faaea2e5a0d2de8ae. 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/BGA271700056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d292823076e5da3bfff99a694182f26fd0a45a72c3288863adfd58e0fee1519. 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/BGA271800046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4332aeddeb74910b962c0d082f278d1e064c942b2b775171afe98c72259217c9. 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/BGA272000176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb9a20ad13df69d59155d634744038e3da605341a1e5440352f2dfe68a083ca. 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/BGA272100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9f93e03c85625b6137695ea040ec706d905701502dfcc2858598fabdec15e1. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/BGA272100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0f5ca160314f52f6411f65aa842cffb6c3c51ade9807836857e85fbbd40db0. 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/QZES61941417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb9a20ad13df69d59155d634744038e3da605341a1e5440352f2dfe68a083ca. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/BGA272100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794de6bc7e2d7627afb6a8f880acac26ac789718fbbd292bfc1607adfd0a0ab2. 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/BGA272100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9f93e03c85625b6137695ea040ec706d905701502dfcc2858598fabdec15e1. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/BGA272100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab24896d191b2eb73b4f29c4a426cb88d2c7c4c17fdd744e879a63299050e88. 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/BGA272300011.
Само Мой (Malo on the Beat Amapiano Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d2342745767c16ac926e3016fc908d13fe38874a1f90cc0bb83deab71d48136. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/BGA272500026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e41cffa971b5f1fcda770639ff51fa08837e8bfc1f1ce5d074f2452af36eea. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/BGA272500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a34c8934c95e4c960f2813b31e80e37427f19c9d444941be133e4f72152ade. 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/BGA272500027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c870e96bdb0a9e726bb806d31269c667aca6a0d8ef68fa2d2621abdae6fc16d. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/BGA272500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3ba527a5c0585fc3adb6f5d229af15784344fc291176e47451493f45773502. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/BGA272500032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7a3c2bb34cc65eed8fc51e057d51821b1002c5a20d426aa01ea3eb6981c529. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/BGA272500033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c441966d6fe35832e3d87d2407e302a1fafd6f0eade63069cb06b0a00ff3b4. 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/BGA272500034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7651ea2ce3009611088853d4fcac186ca3d1b3099415e4f8c0091fb6bbd0f5e2. 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/BGA272500035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e6f5349e85c4ad41a4957c4da9cb3b36a85ddb3a1a6895991d0d686cd337f5. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BGA272500036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a93e87dc63d28ae5bd68d70b1191b104f56fe6886030c681d7fb82e59c0c924. 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/BGA272500037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a202efcb5110c1f1c3ae1867f63204c6a8eb4b77a2f9583f797215221c201d. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/BGA272500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c1f37d92eaa2e960bce21d49ce8af1e9d79cc896e5a4bc6275ddd1ba47201e2. 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/BGA272500038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb2f65c0fe28fddefbffe6895e6954576da379c729fa355df07a828a0225bdd. 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/BGA272500039.