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 0x73845366082a404cfe67f708629a2329f79161d22a220bbf9417cb0a458e6f70. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4052d92c-09ae-4f03-be64-55a91fe7f7f8.json and https://artists.proofprofile.net/proofs/artist/4052d92c-09ae-4f03-be64-55a91fe7f7f8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
It's A Great Life On The Buses (Theme From The "On The Buses" Film)
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 0xc5bd365e169c169e70f20bbb6deada2a1751b208aa534c8c9f11268e7c000a1b. 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/GBKTV0400374.
Original TV Themes & Soundtracks (Remastered)
Gershwin / Arr. Harris: Fascinatin' Rhythm
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b726edbb344d4633c3bb6c8a2a98c3da9a44f4f4f8dcd765f187863fdb4044. 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/GBAYC0900715.
A Fine Romance - 2009 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d1ad9652e1162adaacfaf11e003c1af2022bbb1e63bccd1fa6f8dcecf67bf4e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBAYC0900701.
Pick yourself up - 2009 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84dc2720a21b949afef7f64fe7b75ba70719853a8c567334de9ee79777996039. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAYC0900704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47fcce7cbca26436bd341cd9cbddf8f603bd4d7403927276134173679aefc82d. 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/GBAYC0900722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd6e704af40874b1d236756a19414ba7e88e68e1a1d99e58558b302fe596f87. 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/GBAYC0900700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8b5bb142c591894fa9d5b890208a368229bf9dadb2ceecfdbf01f5f4815022. 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/GBAYC0900725.
Cheek to cheek - 2009 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813e1bceabb498701de67e6a44529db077dcf2c6d7025d7cb168f855ba24c1a4. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GBAYC0900710.
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
The Lady is a Tramp - 2009 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe617ea0a0ffa7b6922ab86429f914c103e1888784a395521c7f16341eb3298d5. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/GBAYC0900711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b4685d4bedf285a1c6724127ce1c173e17463992c767e7463ba63c24924299. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBAYC0900721.