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 0xa6d074b2b09751fe8e8ea6d0a2cc585f01910f9823241611aa8f30fcbcf3f8d1. Chain 2 (Bitcoin): anchored in block 953636 (2026-06-14T13:03:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/35302b5f-f226-4a50-a15e-389e67627b02.json and https://artists.proofprofile.net/proofs/artist/35302b5f-f226-4a50-a15e-389e67627b02.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 0x10d670524c1dac53ea4c74c2e20cf23d990cc4c678a9d61cadd18c5ba794473c. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:09:49Z), 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/QMTXS1400042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f98ecb543cae474630af486230a0dca58251aaac552ba0468628b6e6423c14. 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/FRX452140218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007c65ddce5c3f672d6ac138b876b51f01218f5cf3b1222a731cf1509536602c. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/FRX452140219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45736ff65bed3c2a905e174fce6274a3dae3631dc99651847e525e9ae57eb5e8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRX452140220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979f75ad308ab59dc359b201198aea79a3530bb9ca4ada81ee1f2d7a7ebddeeb. 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/FRX452140221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d15bada60d2682988af4a368588f0ce6f2bafec0f7956c6de62508761fd4ad5. 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/DEZC62588164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cfe308c91f0275cd37937fb6a19ba989b35c5abe1b9f087368d1f8ac37a73bc. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEZC62588165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3106ff0d0a988ce84d3722e2adc1bb29e9487b0ac0d2505f8f7de1f03914153. 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/DEZC62588166.
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
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b003b1d7de5ce20fa5f1ff18f78071b848a4ca21dd182af91a8d3527a8dcf7. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/DEZC62592866.
I Love You, You Hate Me - Ethereal Ghost Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9020eab682f64ff4fd113b20c2b21e13cebff9265e67de13cb3f4a01f3d68127. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEZC62592867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40eda0deff02131845467ed8afc4b6ff714e466c20c4caa19009bedb6618f2cc. 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/DEZC62594647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ebd1736878363f8e3e9750dc53073dc3734fc9c0b8e2f23aac5bbbd50d98828. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:37:06Z), 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/DEZC62594648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56048c3ceafca9906516a7208cacfb06db10cd779b0be56b19b01910ed04f3c1. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:40:24Z), 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/DEZC62594649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9364d38e9e99ac9465b445963e4511a2dd56c399ee350769c871f515603ecffb. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/DEZC62594650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58db6d44d250eb5155c2eb0cc68ac8cba54bad2034025c7721f4fa19c3a0c1cc. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/DEZC62594651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26618e96db01a7fe99832e076ed407392e802c350aae48fea8cb191f037d6b90. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/DEZC62594652.