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 0xac8de80c2a4ee71ba846692ec43dfdf5ed5666ed757a521b8004aded78e69af0. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/421945ac-f8d1-4019-87c5-aa0e09d9edfc.json and https://artists.proofprofile.net/proofs/artist/421945ac-f8d1-4019-87c5-aa0e09d9edfc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cinema Paradiso Love Theme - From "Cinema Paradiso"
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 0x5afd8a9b378c6edbb5e090f5d8bf8a0bc0f76461df92a43703107383f8e3a781. 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/GBAJC1600135.
Cinema Paradiso Love Theme (From "Cinema Paradiso")
The John Dunbar Theme - From "Dances With Wolves"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282123f41722d21f3b7f2670da0ba450320c5a4cb720c5a8f5c0121cf02a4093. 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/GBAJC1600133.
Once Upon a Time In America Main Theme - From "Once Upon a Time In America"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a0e358ba4b843fd2c3f4a0c6000b2b69b88ea26b0d33dc3b77c1df94a2af0d0. 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/GBAJC1600134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5afd8a9b378c6edbb5e090f5d8bf8a0bc0f76461df92a43703107383f8e3a781. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBAJC1600135.
Whisper of a Thrill - From "Meet Joe Black"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b4786e097aa0f8a6086560964d5c40a8d36cedad4e88086dc1a91ba3b051abf. 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/GBAJC1600136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07499de96257dc19ea7a6eddfffa291f5eaf755f87ea815a7afcec9504e5058e. 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/GBAJC1600137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f5f55c1b6ae2b24b6a8f4e1f38368cc3ea26616ee0f4583bbfed99244e2692. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/GBAJC1600138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d7feb2d5ceeb5800789454165f9cbf669dd7c31c95cd542ef242c5734711ae. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBAJC1600139.
Where Dreams Are Born - From "A.I. Artificial Intelligence"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x798551e4174f45f876c2a530fb0a39000af4f959449d3c96e83b93c647f746ed. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/GBAJC1600140.
The Ludlows - From "Legends Of The Fall"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77c21719a74117e0dc45c8381471719962ea97d4c541c825e902597a80b0203. 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/GBAJC1600141.
Cinema Paradiso Main Theme - From "Cinema Paradiso"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6677a238b91f477a3a20713b3264d205e815cc3b34aacfb3ca96970b9fcd49e. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/GBAJC1600142.
The Cider House Rules End Titles - From "The Cider House Rules"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bec4c27a7cc2d2e32f47716634c9f640ea48c2726c51c5ec1459d5d9cd02ad5. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/GBAJC1600143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf78e226e26f35140e0518120899782bd8e46b6262b01313e2cf734069fe98b50. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/GBAJC1600073.
Essence - Lisa Friend Plays Fauré & Debussy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa694f939f5b0bd5c6833efd43ea292e9eb04a80ed6dd3869e09d55e0f4ece7. 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/GBLLH1533301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2daa25f6303b2c449cd0ae1743fd93a45fae8a36cd0a3eb8ee1a2a292870f8. 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/GBLLH1533302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x759d190bec12fbf93d986964c4a563edb5d837559c4840295e9b98ec3d10c33d. 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/GBLLH1533304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9daeb19308daf455b7ca2bc518b5c7e9d85feb79d70100be5832bf7de260786. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/GBLLH1533305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6170ff464a6f04492a8032530e767b437665b1f73d23a412b3eca16a1efa7ba. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/GBLLH1533307.