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 0x50390009a88219cbcf3510f28356ebd2a9d8e169c0137c200e5f914c4bfbaadc. 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/53bd6da3-4804-456a-bab5-4942ba718261.json and https://artists.proofprofile.net/proofs/artist/53bd6da3-4804-456a-bab5-4942ba718261.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 0xdfb9bcbc85b1e141e46d86e8c62eab8183af7bd6a2071ae7216169cda66cec41. 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/USUYG1422726.
Waffle House (feat. Drego & Beno, ShittyBoyz, RMC Mike, BabyFxce E, J1hunnit & Prince Jefe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b77041c9741efc08492ec017b330d5a0f58c7b7b273bc29121f8a026ca7651d. 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/USUYG1462265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6962d3789c6b453a5fa7aab40fec9f4306a77a02d24bc318ff9b070ff75441d. 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/USUYG1394096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a379e3e21a430b030ff230250addd852e588c27d56f42fc5a1e35374c59071d. 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/USUYG1378484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa61a2168ec3942daeb43a7079f0eb1c7aa08e03505ca3f444423d1e6800938. 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/QZMEQ2126599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68962abc44ca04255293c237ba7888cf1420899181dd6c297e95b534bb0114b2. 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/USUYG1422791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb071be1736b2079e08f034e14b4f06191560cefa7ebf6371e8a5d9b6362d8e. 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/QZHN62080384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66678c9f156efd2fb607cec51ea6b11d34114f044081f328d12c0365f8dea1cf. 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/QZHN62080389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f728f718189deb5302f3d06e80d1f9503b2b24c469bc45299cb74275f1d6c71. 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/USUYG1565527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29883ec6c80580f87afbe8a8fd1cdcd7fbcd98a5bb3549620528dc578ce28e07. 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/USUYG1565528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe921e559ea5bc8be429d64525e6341cdd3749bb43d244503f7574f3634a1e8c. 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/USUYG1565529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b37bbf93a823b59f18a66212274bc7927bb2561d7ecebbbcb0cf6ee1c6e9b4c. 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/USUYG1565530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f48ed547493d3a6b6a1a0472a62157959d52bcb82ea124ac411515997bf0e9c. 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/USUYG1565531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c3c8aa6996f4d36024bcf77e8494f26b51a3afc45bf838ed2f9ad310891bd16. 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/USUYG1565532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ed4bf06d5f617b51aa70ec970e71931121e743d0d9b215a7ba316e7ea0d327. 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/USUYG1565533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2355758cb764560e3efb8a4880d7c39f37051607c67c1700682979b3317d4f39. 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/USUYG1565534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e3f9c5e10119912ce2b6f83a09a401040bf1f850ad47ac0a54ce67bb2b572c1. 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/USUYG1565535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7e24019bc386b9be1c1c5cf856cb465d043f802188b6e0bbba897594a1ac76. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QZK6J2285907.
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 0x54bec717872eeeb5aa4b1cd4114d47be74ba97fc807646978377ae4eae82c820. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QZK6L2218876.