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 0x79d898c797f3b37a41d4c0edb10333648b679f05f5c302a6956e428ad1e390ba. 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/d2db1486-e743-47ca-92b4-6dab72d041d6.json and https://artists.proofprofile.net/proofs/artist/d2db1486-e743-47ca-92b4-6dab72d041d6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Sleeping Room (Original Motion Picture Soundtrack)
Starfish (Original Motion Picture Soundtrack)
100 Streets (Original Motion Picture Soundtrack)
The Marker (Original Motion Picture Soundtrack)
Three Identical Strangers (Original Motion Picture Soundtrack)
Winter Ridge (Original Motion Picture Soundtrack)
Memory Box: Echoes Of 9/11 (Music From The Feature Documentary)
The Obscure Life of the Grand Duke of Corsica (Original Motion Picture Soundtrack)
Prizefighter (Original Motion Picture Soundtrack)
Trying: Seasons 2 & 3 (Apple Original Series Soundtrack)
Earth: One Planet. Many Lives (Original Television Soundtrack)
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 0xbeb98ac8958d6c2b28323f4df27314f02544d784d8dc83664e35644e97e0f317. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/GBCAD2301929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d12bd9eb051ab7725d6ab4353f0336bc2d93ce11ea94e036b7e41b92abfc3b. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/GBCAD2301951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ebef7d882ed4af31ce87b10ef9b51ae3e5f5718f0b02c51b2e2850f8ed0bf0. 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/GBCAD2301963.
Love At First Sight (Original Score from the Netflix Film)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1183e292f9e343dcf629444510b07b69af3bc7697ce0c9b4fd28897b4b5937. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/GBENL2303686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ef8b690e2186f23a1f83bb059e9a22fda3053178ee9054b49bb230837bac48. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GBENL2303690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a97e95e606d0949d4f8f36ea1d219e9e33b3dc5b3ab687c5f157b25b495bb0e. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/GBENL2303698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce35bf014f7ad4d8343e61b8ac4793d92ae38ecd17865e7cf3c353842c4e9fde. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/GBENL2303701.
Fight Or Flight (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff2703a5332b8b08a3a41b4e97d25289c3c3301a96981e9a165b37d67d08694. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GXGEE2500003.
Built in Birmingham: Brady & the Blues (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2f46f8babac79eeccbfc6493bacc1f5a8ff029d3e136d826d235d43e30bb42. 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/GBCRL1600330.