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 0x9f1906108669d7590c776a1bc640730df167cdf314b074f6c0fefe01e1ba824c. 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/29ff4ecd-394e-473f-b08f-0c0f97efea19.json and https://artists.proofprofile.net/proofs/artist/29ff4ecd-394e-473f-b08f-0c0f97efea19.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 0x4ad8667b94bd182d5a3650e84575af5f54656408ae2a78056c1d17742dc6f596. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/TCABY1464311.
Cyrus Skies (Miley Cyrus & Her Dead Petz Cover)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3c18c5dc413017ff29513b5b2610ac604461df10ece6f6dd33085b4ac6cd6a. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/GBBRP1756801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba79ad288492b8cbcbca9c510ba645e63f5e4c00694ac256bf0018111656e93. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/GBBRP1756803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa67804701969704fcd95ad371d18d6f822c5ec008a0af3b447f096593120e5. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBBRP1756805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3a9e663e2e543c79c87ec938645b7ea913c188ddd0f566c88f70e6709cc727. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBBRP1987303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443f813144f2a46e034ac398b97fe63110dc1d85313fc50fbf3f2d26ea0ada32. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/GBBRP1987302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed41742e57546d710b3cb1944f8ae7056bfa6ec5f5da385554af4515cc00e4d. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/GBBRP1987304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaedbd3e3d301d141a44376726b7d4bc3e9a401ec33de402113d00d99ef59072. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/GBBRP1987305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x925ad7945af656647a89cff7849bf14e75212abbe639b2537afb2378c0d54e40. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/GBBRP1987306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e503e51d2b455203ba6980518b02947a782eddd94f917bde98114d554957195. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBBRP1987307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b20af27df64d0bad737521f6ffb1aebeafd2bdd54dc06255d68a59705b18b85. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBBRP1987308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d47ca08fd6da1e3ba9df4472ba878bb389e58d979e7432a0933bd9611d2528e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBBRP1987310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7f87a390c194515e690789a366aea8f28246dbab294b68d119d3020ad1adb8. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/GBBRP1987311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad4a3dbe4eede61cbd625d769393a542163d4e7d1679fc417cbe6d0fadc8258. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/GBBRP1987312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f853e4a7ff2aae1b28074ce96c04bc31653fa03bf9855d1ddaf1f41447e8315. Chain 2 (Bitcoin): anchored in block 957658 (2026-07-12T05:03:28Z), 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/GBBRP2200754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ec2eab3f14f155e552ac1cb9ff1ee48d7fc7800babace0ae8a6541783a3d50. 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/GBBRP2200755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb2f7b51f3baaf9d46d8417b3d38174dc1c5019293398c94a9c0004cf8ba4bd8. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/GBBRP2200756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdefaf781d4020821127c7b9c91aa9c0cb747dff0d6d7d9a920537e61625381ed. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/GBBRP2200757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3c0f81646a97544031d802aad02b9f6d466f1dc08aaec8e8ee7b0281b63d80. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/GBBRP2200758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106e9c7725da6432b440588903346ffb5b91874e887536b887bf32decaa6ff3c. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/GBBRP2200759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c414c3c95f4f60b791b71696f1ac4a58c0c08617e5601d64103850dbd16c7a. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/GBENL1702063.