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 0x9a3bb2c55fb0418ac925f9eca65eabb50496efc514d8b291512ae15fe8325afe. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c8d8e2cb-c4f4-4af8-b681-b0a0f9776374.json and https://artists.proofprofile.net/proofs/artist/c8d8e2cb-c4f4-4af8-b681-b0a0f9776374.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 0xde9b57c224b925675964397ed4e5b7963f1ff02cdc815ae5d77f82d1e96dda52. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/FR10S2114474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3fc2ec9009fa52d3b0bbf9b2a559fd031ef8ce411228b765260ebdf386d5e5f. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/FR10S2114475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd487c091679a5c699e503cf04e3e3cf2e1cc33007d6ab985f7dc843f625b19d9. 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/FR10S2114476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630510206ca958bf51a0b2f91e764f7a7ee063d9564e4dcbbe271dbbe4c321d1. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FR10S2114477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d81eaedcd3d54d41fc28545c8e19c195add2145f976dec36724c8bcbb3054a8. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:49:16Z), 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/FR10S2114478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0362b9d7184bcec74e8386df1890c30fdb4c4457dd8929e6cdc6104baa930512. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/FR10S2114479.
Album Kompilasi Tabagsel Milenial Marjuta Arsak
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b938dff5fdae0fd3c546c79bda204a18f87100de3e5db714891b5b0f14ad035. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FRX872024209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb4e46a4722ca0c2cf30323b6deea3668f58ac45fbaeff1634be86abedb33b4. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/FRX872024210.