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 0x7375240aebd4df5fe69c3c935b1f9bf7b432ec9bc38e3cf3517577736d4f5cf4. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/805898cf-e4ff-428a-8a73-8a1abb938756.json and https://artists.proofprofile.net/proofs/artist/805898cf-e4ff-428a-8a73-8a1abb938756.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 0xa0ee39ecf9e86c19685f2d3d67d49c75cd2db2e9f5703d86cfc652e80ea6689b. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/USLZJ1917899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e7ef69dfeffee229856af80810ecbda552424bba32868010eefcbce1601cf8. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:25:39Z), 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/USLZJ1917909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e56d51f9312696a3cf8b0a6624b5c17afef2c9178e3f53e18731e02b98254b2. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBWUL2022837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e68598ab08291b70e1aba103ff541c057131d0e7f0597bb5359aaf964c92d9e. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/QZNWZ2034150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cbc8053a384099d8ec770d3d3cb42405c88f8f5d8db3226506d49ab646b95d7. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QZNWZ2034151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3f68bf005d03d22961228ed438a33dcb2588aa1f4ed972d3c9aa56b10e2d9f. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QZTH92243837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x120dd786b2014a7c3eff72e231d30a6975ff2f3718ac11d6b1b36f2d2485aeef. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZ5FN2386688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2f32d6f3309543a06275075684ce17ed92c6eace57dfbe8db307b6d73b60ff. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZS672422302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1833aba702a143032c56fc91eaceda5eaae4ef799afa6da8f3439c0f24ee39ad. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QZS642415491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa8345da399c82806a9dd7647268346bf2cee542101371260bb8a02871bba60. 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/QZZ8A2409922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5669aa0974b13d06ba23b77bf2ba92aa72bbcc97180b21f78fec45189d82e2c1. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZZ8A2434261.
Prayers to the Flame (Peace Sine ReVibe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1118b1b7f0245419e8ec84e9e8b014ea1c60de02ca28741210c4df5af965167. 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/USWS42430412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1118b1b7f0245419e8ec84e9e8b014ea1c60de02ca28741210c4df5af965167. 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/USWS42430412.