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 0xb01fa4c943f6091e5f0724b0aec18cd7908f54813fff17627058c2c307a2311b. 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/3bb46ebc-d0bb-4d02-92be-65a1f0a03596.json and https://artists.proofprofile.net/proofs/artist/3bb46ebc-d0bb-4d02-92be-65a1f0a03596.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 0x288e4be2a3190e40301c94ac1b8f50a56f4a24525dd1d3af563cb7108e601ffb. 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/US83Z2206778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc914b28d34d6c35d7467c9b7d6b461df0e4616e027ab6011f21ef173c8cbcb6c. 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/GBJAJ2301411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa7fae115f5019c3ad4ad965b01ef453b51959c5e1f990535eb51ce7ca3f37e8. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/GBJAJ2301410.
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 0x1d6cc85bf41f4716aed09f6dd8306252bddd33d21ee3b0dca76ba26ae3102da6. 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/NLD682201964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f0464d6ca25e7fe22a4c508e5045064efc145ea8a3ac9a14e5a9fad8c0b4fe. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/NLD682201963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2100bf1dbe28c29b848f059f71787b17c087e07297dfcd167a7b9874c23dabb6. 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/NLHR22200619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be13b453d5a567c97c96c950bdcf1dc782b85a9e82293a3c13e9cc79a3e91c6. 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/NLHR22200620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18b5a051862ea52cb35e7255d6ea25f510f74267cd8093af09fa2ea023d228f. 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/GBLV62132729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551d5c852f73718313283e93b7523f2dd8e0ceb0a9bf7e708048cf8eabcc21c5. 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/GBLV62132730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058467b617326e57fd91d3d13b70ed7cf8c90acf5b9708739a817b746318efb9. 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/NLHR22100960.
Long Gone - Paul Anthonee Interpretation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed8923247caf7d794e5aa6a08dd81b43b69acfe08e3e1f1fedccbdb419dfd9d7. 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/DEL672100174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aee2955776ec07aa4a61cb1334303e0bd2df5f3a82384f7f1e6a67b7e9c58f0. 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/QZPQ72100048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b64e98f85706ab58641d775926dd79b937d79f1bbbf76716d8bc10b6032122c. 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/QZPQ72100049.
Serein - Into The Ether's Sunset Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef00604b05b700ca0c46926f1af7daacfa85d2b0682167f78bf31bfb894f2dc. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QZPQ72100050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0fae908fd0071c4ac251dfdcd0fc93111c19104fc4ac32810c7409eb9ebd8fa. 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/QZPQ72100051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7fb109fb4e12f5673a15ee952f265711a45bd3f366899b66c98962aa2b69340. 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/QZPQ72100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae01838a39283841963e8e62b988b27befc695f8ff54473fbf85c2a15e37856. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZPQ72100036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc97eaa2651443fb87f75ed0f75a12ce6c342773c48a902236570d3be14e517. 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/GBEWA2400539.
Colorscapes Volume Three - Mixed by PRAANA, Matt Fax & Dezza
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56b48067879589f44d1008ba299ee1979082d8b0dabca72653de43f9e2e989e. 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/GBKQU2188895.