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 0x55c1ab5be2ea4945797774cf619d5d671701dbe830dea309cd570cf9f88986b7. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c1956d02-1b24-47f0-92ef-3e5c71b7f272.json and https://artists.proofprofile.net/proofs/artist/c1956d02-1b24-47f0-92ef-3e5c71b7f272.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dance on Strings (Aether Gazer Soundtrack)
Fragments of Light (Aether Gazer Soundtrack)
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 0x4839c02a3237fb5ec23890fac76632b4471377de65d3aee45152ef87581851a4. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FRX762475486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854a5c5c58bcdd663432d5a045e0ee65c5de8918f9e8dca78627db95613f9a69. 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/DGA072330197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe386fd5769a6d98572a85c697d64767dcbb761332d95d6c2571d7a1e04974315. 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/DGA072330199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6522022b55c2bd0a75987a274e1046b16a3cd049e71ff0041d07347e94b02b. 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/DGA072330201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf203d7d50c06ce82b1b2eec3e24265fb2ed438f670cfe770d39ecddd4d076f. 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/DGA072330203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf646805a28ef101a2f6fd286b61b2909ad9a0d99943c48c85bba0f88601cc06. 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/DGA072330205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8050c74ff1f4cc0579d2bd6d3ac5f4d1529949380e69edbcd9dfeb776a029db6. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/DGA072330207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f69c8c2b06fc8d43d4af39ce63f761659296f428d3d48aab591f351e5661a8. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DGA072330209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3374bcc630ed08034f6af2c228edceafaf758f31c13610213f5cf03aafa2ca24. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/DGA072330211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f59774e7fdcdb60bf1a9a5b4e1819d417a8f610ebc0d34ee1e5032b2d8ed875. 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/DGA072330213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4be66d984bc11e309c2c4fdcc3a55a430bb3b7f42887d3184ea79da9e4aac4. 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/DGA072330215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0430db4961e84f8ee673c6ec7bf22d493d172ea32e3e08b84ceb00ba7e373206. 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/DGA072330217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fae7f5c23eeb087f47ddd6cbfdaa9d25b94cca90222874343fea1280c47faac. 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/DGA072330219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb16942038e617236d0f39d576ccf566f9fe1e59d7f80244dfdd68b16733ab2. 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/DGA072330222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f84d088d6d963a147b17e49e9a81c746f3ffebc5ec6af219fdabcb26fd4ed6. 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/DGA072330224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb43c95e6fc81ed538b56c4f6d89f11ea269de6562faad4bf8943873b41d96d4c. 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/DGA072330226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6904bde0be1498c574a8bb7cc7370eb94ebb2ee609becbafd8d50c8fb2115d. 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/DGA072330228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c37d04d1f267e4ea52f0a3cc19722c15ba5d37773e9a9f3c2cbbae1e42418a. 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/DGA072330230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9c2ce1f1cf9d906402da4adbd28473c8dad5b121e35029ed93a46592e5c1c5. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/DGA072330232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c1d8a109676aab4fc68da3070ee1c6137c1416c192f398b903839bfb44ab58. 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/DGA072330234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f88f1e42b288f4a9d1a4bf80440b6561f1e630f14056881718776e8be091e93. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/DGA072330236.