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 0x82966f27ddf7a5b4ad1d1991bf923d6a81769d9bad2648cc8f7f8ba2d4b22c25. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/894270d9-d345-49bd-89b1-281456ce6476.json and https://artists.proofprofile.net/proofs/artist/894270d9-d345-49bd-89b1-281456ce6476.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 0x15b2324685046d12bd9e12b51e4f4c107a5f41579e5b8d067185dc0aaad337af. 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/GBBFG2203501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc40de864412fc50b820e7e12ab4a10fca55c68a0eefb6962d03e8a12210c5eb5. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/GBBFG2203502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd3d9e30a4b8de9c3b61f791a142f0319f917d1dd8e95bfc98ed709952bf6a98. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/GBBFG2203503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c0570ca4e2da5c46ebb156891670e7d88c38969f265aca5bb5eff31fa84c1b. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/GBBFG2203504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x348e725c6866359136fd2d3bb60f6f38bf6475ac0e2996f9ea0ec64407ee1b47. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/GBBFG2203505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db7cb8a2083c9c5dc0f5e1b699a45277384910be75a47665c0a66d9284ba7d0. 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/GBBFG2203506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cd1f5095e66f325dbdbe697932d76e121a3a37a4b58525793942870130ad983. 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/GBBFG2203507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982a680b32efbd5db5eb2e75124feb0d2269affabb9e335b921e86541f403e08. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/GBBFG2203508.
Vol. II: Every Tongue Shall Praise Satan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369c73468d0b93aa3959e3112b3b26e35e2f3408a99491852891aa186a5cfdb7. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/UKBFG1801701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19606de5da99595e859318ef843a310abc16e2d255194873326266d4beeed6c6. 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/UKBFG1801702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a121f5355e77428f294d49b90f5254cbaabe54946c2bde8dc938acf1749bf1. 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/UKBFG1801703.
Liturgy of the Iconoclast / Blood Sacrifice
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdabad0e057543c0eb5eb374d7c24dc0cfca59941ee365e2414659ec58b61be61. 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/UKBFG1801704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f25783402cbe40bc1093181508cc4210a1f63e492064b95b755b8097d41ecb. 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/UKBFG1801705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c87ec348f21a34c3328328663346368aed12dadd9b9f7288ac4e575b673b369. 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/UKBFG1801706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2a4415517e3f05ce3a5950083a8b75584831411c158828eef01768325c8547. 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/QM7281582902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab332aba2b5ccd8c245b6bd87d117d40abae4b7cc30a32428ab265ea19c1e12. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QM7281582903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x447918c504bb170a3e4b8ed4e4fa8b9dc1229ea6388cde6f519f0cb9e399061b. 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/QM7281582904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb116aa370c1953bc5424d8999b0ae91227cf48699af25b7a181450460ea3a914. 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/QM7281582905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae333957ec5909208634ffcbbd47371a6713e892a6cc4854fcfdd5a51ab9ebb4. 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/QM7281582907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f56ffc8658737932da2cf82274632ebc1e791dc6c00bbc6809e5ed9fa273b2c. 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/QM7281582908.