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 0x0363daeaa9bdb680d0efb275cee844bc4cb8eeea8187ef69c79bc00e4fe90512. 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/1c6a1208-8a6c-4e36-91d2-01d77fbd287a.json and https://artists.proofprofile.net/proofs/artist/1c6a1208-8a6c-4e36-91d2-01d77fbd287a.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 0x6a9ba11e623424670e02c7de3328d6fc6997ecfdf65885006eae83cf47da957d. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/TCAFW2179180.
Wherever You Will Go (Piano Instrumental)
Somewhere Only We Know (Instrumental Piano)
The Show Must Go On (Instrumental Piano)
Magical Mystery Tour (Instrumental Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd5ff83c5aa03ee5e71182aa06d0853b374c66f76c1f9f8b549e8c384fbc0ef. 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/TCAFW2130740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c843d6e84c09709a16530c6d9779624c5464795f2715781795b6e59995c44cb. 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/TCAGH2287443.
The Show Must Go on (Instrumental Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75fa981ce48b3da96fc6f095f94409de597c4dd12dc976c0fdfe3cd0a04cc54a. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/TCAGD2296031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7792841c38276e552f2ee67b7209f8f25f205c278e225ad4d37eb148c0a47718. 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/TCAGI2213205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd188ac53a026115940d326e5f6703a5e95917370b8f5f107114e3de39267f0d3. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/TCAFY2130570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc26de8dd4bbe6e227393c2d5de1aaff1333b0cba30317990a180542e854db376. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/TCAGI2213325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c843d6e84c09709a16530c6d9779624c5464795f2715781795b6e59995c44cb. 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/TCAGH2287443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75fa981ce48b3da96fc6f095f94409de597c4dd12dc976c0fdfe3cd0a04cc54a. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/TCAGD2296031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9751ff9850667e2218b8724088ba19693d91de8b3926dce20106d625e87f5eb1. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/TCAFX2195416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c843d6e84c09709a16530c6d9779624c5464795f2715781795b6e59995c44cb. 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/TCAGH2287443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75fa981ce48b3da96fc6f095f94409de597c4dd12dc976c0fdfe3cd0a04cc54a. 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/TCAGD2296031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9751ff9850667e2218b8724088ba19693d91de8b3926dce20106d625e87f5eb1. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/TCAFX2195416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75fa981ce48b3da96fc6f095f94409de597c4dd12dc976c0fdfe3cd0a04cc54a. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/TCAGD2296031.