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 0x075031637383dcb58a5d50927f1d271ee673f6ffa11917c8e218a6b8bac4fe4c. 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/a785f154-33de-43a6-9c40-cef87b5f3d85.json and https://artists.proofprofile.net/proofs/artist/a785f154-33de-43a6-9c40-cef87b5f3d85.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 0xd277a88307f9fd11e2f207581cb43c721eddfd35fe84e9c97fc4062c03501c33. 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/USOSM9611202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a28461666a4b30327f206020c54a709ca9eb6c9b10b2d90ad241c350e505f0. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USOSM9611203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff9b086e4c7492c46398e81d5fbed8c9e9511186120fd73ae438aa32b62f7674. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/USOSM9611204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4b806db1634b32fda929929ca7f9b038966e54ae50f204e4c2f08ba25fe1c4. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/USOSM9611205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18650103355bb84f609f777640573279d67d3757186ccb5e6ba18a1263a8a18. 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/USOSM9611211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e0028f666882c4ab5737e013dd1c9edf561a730be7352002724602527e7a50. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/USOSM9611212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e78a2ca173ad26f3a68613d0b8c529f7bc932df374c001c4f59d31c042282b5. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/USOSM9611213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe579c4c37dad01cbebce85e697bb3aa15e2bea9bd4f22815727c4f8b8c8c9f7d. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USOSM8511602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a6d5ef7f79df2797c7351429b3c0fdeec84b5376e7e0f87f108deecfe92087. 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/USOSM8611701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96f9d42625a5bfbead5070fa171c052afe5aca54d178dc700c63dd125a70f34. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/USOSM8611702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc94a2acfa0e0273ec87d499ba1ce902afd4c354f61e12c086e8864cdb6074d02. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USOSM0012101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8836ad48a7b4ec704e91ba34eb30e3b5928e9b8f32e5a374cbe5d473e50bb156. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/USOSM0012102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162fe74d216f59cbd5393689bc31239a7fd1630c66eba0a87f030d1eee8159af. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/USOSM0010801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac387c1b74342f7e42caa9c12e2aea721b50551c64d0a3cdc46c8908605a55c. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USOSM0010802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e6c3ad3628759e8cb5e79478bee3536dd1708323bd43e118a8ec3c1d038313. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USOSM0010803.
Eternal Traveler (Extended Version 15:37Min)
Eternal Traveler - Extended Version 15:37Min
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab2b99b372576203848c13e10320e761e0f6b3ba31f94fcbbdb6a78479217a2d. 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/QZK6H2582265.