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 0x477c8e2c7560a68203900b15e9897de9640c5e3c2c9c14fb861ab71781f17a6f. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eaf937b1-6101-4e4c-a493-6139af30dbe6.json and https://artists.proofprofile.net/proofs/artist/eaf937b1-6101-4e4c-a493-6139af30dbe6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Repainted (Classics in New Colours) (Remake 2010)
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 0xcc27aac99eb2e6a3cd2493f62575b657d1cdfc0c5f497f8231a24286d1a64a70. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:10:06Z), 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/DEGA21200712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc58b6ae90a36a90add816f876e5340662a4f48732ea8102e3a82bde700fede8. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/DEGA21501802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0793873f4fb2cc43442d77e3499b53d61ca4e1d63c8abf9a78216c172c828af6. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/DEGA21902785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6eb7f35b15ff4270717a31ba29072c568e4dd7add52862d30a73efddb33aa1e. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/DEGA21902827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ef33da7a38c0d9541f9fef528189177fc003b6385f8e75250d251d07a91c99. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEGA21902867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2a64f019d6f80a07b6c87c614248ba1b52e632b06506972d34e883411d2cce. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/DEGA21902869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3407d04c7681fa7ffb94449f756452522922f92173f6ffd7966e3b117cb0b8c8. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEGA21902870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3db41b90fd35bb68a1ef72008bd9e84e2db485a2ea2999d5f72fa7b2811fb65c. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEGA22504308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3db41b90fd35bb68a1ef72008bd9e84e2db485a2ea2999d5f72fa7b2811fb65c. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/DEGA22504308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed1eba13cb3b4f9e7c8c5eb2222402a1228e4caa87ea654710c8b4ce02a1afdb. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DEGA22504364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4385d33cc752261e6bd4c1cce82e3e06bbf8ff2fcfe492d5566a716410ba5e5e. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/DEGA22504348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3db41b90fd35bb68a1ef72008bd9e84e2db485a2ea2999d5f72fa7b2811fb65c. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/DEGA22504308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95ab32635825f563ff05e2266d04c09c33cbe8ca282589fe7a2f0a361280d84. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T08:34:51Z), 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/DEGA22504385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed1eba13cb3b4f9e7c8c5eb2222402a1228e4caa87ea654710c8b4ce02a1afdb. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T19:19:54Z), 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/DEGA22504364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e70e947f283379daafe88cbf2d850f5c39d42f679b952b9bb6c4a3690619ae2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEGA22504441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a0e07d8d261d3b5f4a64e02d343eb5fa5cca93373c8c607dd0ff3d72b5b302c. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/DEGA22504466.