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 0xa11ec4b2d03463efbd002b826d50b03348c7dd481c11683b50f00904aa3c39a1. 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/2d99eee5-bed5-4b14-b584-d19a9ffb1d29.json and https://artists.proofprofile.net/proofs/artist/2d99eee5-bed5-4b14-b584-d19a9ffb1d29.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Jíbaro (Daniele Baldelli & Dionigi Version)
Jíbaro - Daniele Baldelli & Dionigi Version
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 0x8ca4184f6a71f28c683263f9ffc2776e55a411ad414bc6c0d5ec4b1aeda36f06. 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/ES7002471201.
Elkin & Nelson (Sony Latin US - Remasterizado)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a416116ff73c0246b219a94b55ab5dcd20b3cf2670ee9702ab056431374542. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ES71D2300067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec785304217bfb2184bf4edd553f00673592b9a07e0dbc99c614c8766a48e1a. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/ES71D2300062.
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 0x8f043751c3833e3da03d161e6ab95507a4d59f01460e0e7370dec62174d97abb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ES71D1900387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f4d1e0619dd4152dd1d154c5f31c23367f135715485b69c43b09b5f5f4d4c69. 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/ES71D1900377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282d08660e18046a0c0d21d51dc4048930fab742bacd120c9013cc96c453141e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ES71D1900378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d5bf88bb32cf08f5376b7236cc1c46ce4c431e0d6dbe81e0dbadddfcdc720b. 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/ES71D1900379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21fde8c2df37f8443606f81a2f4ecad0d9b26b7993ac0d3f2051c171686e6230. 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/ES71D1900375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3722fda70fa884ef200770828f760d0890d7259bfc76b35db6474748b615b6. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/ES71D1900380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76493902371fbef68e2ff2dea242c970d4b8941745cf62909b8ac2f2ff0a0682. 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/ES71D1900382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa96d93ed94cf604ff77d7fa5aa285642bd09235a139b1b3a4db89a006e8cdadc. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ES71D1900383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93cfedc5bf0eda6d9785f70acd17e2aefa9441ac9d1be65c83b92572e08ea3d4. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/ES71D1900381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7d94192ff7e87f5aecae9f9826b3b0e2ee259babb191262420eae046d12ae6. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/ES71D1900388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c623ebc6204fbd16bd773f4100f2679302ec5c84ae7c1d382f61fcfc5e0fcb. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ES71D1900384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd837fcdc7d40f74f7bc4fd3682385af50dd9afabf5be2fb9d4dacda23cf46c24. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/ES71D1900385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59471eaeccae7af8817c310f9d89c02173dc78189599238a8d1bec4503aed9f0. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/ES71D1900386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a38f69d9c96deb60c734a7d90f39d9284a3d03b1fb5ac73bd69fc0f9dfb875e. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/ES71D1900390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f85773e9dff6be04935fd0920ebc880379a45902afda75351fb64b5146e7187. 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/ES71D1900401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0997cb3c3f9feee55cb881fcd9e8a16a97c05b7916c0bf3da7e7f69f574bd806. 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/ES71D1900405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd2fe9965c5332ebb2445b9d3fbc700fac34ed0daef8a70f04999d025702f44. 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/ES71D1900406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416134932fcfb9408ff924b7f3e8a8955e8285b678f466a23a2f12bd3b4c9cb2. 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/ES71D1900408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e80ccee5a83c2bd5bf8049a2a4145f6957d66aa3f9b04a295528f8ad4e8167c. 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/ES71D1900409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92629c1fd068de16bd495af1d2b9451f738e43b376a8b52587091a6864454cc0. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T17:57:46Z), 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/ES71D1900402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac4cf663ace7f82f5a0ae5db16ae9ee572e42e4efc9195272c98d905157e18e. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/ES71D1900403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7abca57263d3f655f910a59f55c6d3d11c99fb00dbe3895db18021f1ab05073. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/ES71D1900407.