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 0xb2424d672d3e055f28529f08aa9ec660342a24ff639b3a6be80ac1875258a2e2. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e10465bc-dadc-4512-b809-1e3324402989.json and https://artists.proofprofile.net/proofs/artist/e10465bc-dadc-4512-b809-1e3324402989.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 0xd5f220e5562bf09142483f13fd6c08f5f98b00aca479b9752272413cff2e2f6f. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBKQU1872610.
Ancient Wisdom Vol.2 (Compiled by SkyVibes and Arishtat)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda7a04f8f1f1f58bff754c33024d4a9c3e607bbd9c52a3517044406d5218a53. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/GBLV62016517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c343d9c85380827b78ca12493d0d89d0ebe8d0138143bb309e3ee741963455. 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/GBLV62016520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c64e6259309d5cd1dbf4eca22f4f48ce14087e60492d987cc986d71e52355a. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBLV62016521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f0705654e06bc2c14c4412f9e69db5df24579bf28e9bc21840fec6179acf5a7. 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/GBLV62016522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd288ed54867196e4e853b4511cd9162e53f05a667b43a2cb8fae2acb8846aa3b. 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/GBLV62016523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad0b49fb27d7d058a63c82036f7f200f414a09ad5797df2dc587c75545f8879. 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/GBLV62016525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c821db125367613605a142fc97fd0f16f8f215cfa3e41d33452356e47f38d2. 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/GBLV62016527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764fc993e326c7ecaf45e523266f51f212b6d09bc75b5b7d63184ae614375f9e. 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/GBLV62016528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7056475cea56c77d8f1658df5b73a8eb86512f6a957e59e562211400b9203d61. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/GBLV61918424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856af64f29da72742a72aaf5a8cd7b980d3fde994c96ce12066d6173570ada77. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBLV61924517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ca2aa9dd01085e98fb01ce0cefd438bc0c0e4ecfc881b4ec5437cc54b80a1d. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/GBLV61924518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58493ee109ebf57c6d4d18cbc1e917545d77c17a3a1872bb5b48c21e988f53e5. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/GBLV61924521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a6f9be0b067af3efe82bcc99dc07d210785515aebe2d358ecc4693f25ef4c0. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GBLV61924523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2bbf0376555d7f58ca6b51149f5255438f8d4bb3faa3ba44b9413aa1272633b. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBLV61924527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9766bf21fc1466a226477045407a8e1b0262eb133ca572d3744318cfdddd7e16. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/GBKQU2478631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeefe8dcbafb715eb53c692a309fe40adc504efb079b53d2137bb90ccc118f665. 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/GBKQU1767963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86230f5746f6370205d993a494122afec069344d76bf9d4ee87ff42d79acc6ec. 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/GBKQU1767965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51de42229d7738a91647db87876670c41e543314061a2b3a7a28b17aebc8729b. 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/GBKQU1767968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87ca4f32e2a2169363070fd33a5e543564e1105725e9825d82c00cd6244fa2a. 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/UKR6V2310474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb3198f532e557281fafebe35d378bf71cbed81d5e8239f3b709c8ea63dffe3. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/UKR6V2310475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b95fd3e73a6cd24d8176b8d7491ade2e666d6f35f5facd1c44e192f5ea90d9. 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/UKR6V2310476.
The Darkest Nights Produce the Brightest Stars
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd2f00759e9dd4e4ce382917eb97f7c6b9656e216629c1c7839dd51938267e6. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/GBKQU2508804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223037d13ca01cabd81fe44a5853df0f5274e3e5ee30521e3c8a9739a7433ab6. 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/GBKQU2508808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe60013f7ce18b50960d9bc868e0f351a016aa4b853dad6c1a6a6ef8caea7b07. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/AUBEC2450077.