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 0x51fe20e92e10f6ff770d75e8869c7b65986ddbc62ecfd1f0268e1cd94a6586b7. 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/e158e4fc-9db0-4e8e-abe3-53fa5d912003.json and https://artists.proofprofile.net/proofs/artist/e158e4fc-9db0-4e8e-abe3-53fa5d912003.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 0xc99a47189bd929a977be2a3ba3610339c3b58f3f3708db29789aa5aeb47bf742. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/NOHLX1308070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4668a11621b63305486d3da999fdbcf5be563e46f6df3e91ceb81934554daa. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:01:02Z), 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/NOHLX1417040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a97581021d74c440e4dd527210b4dc10b2f046bcdf1fcefd632292a3815391. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/NOHLX1419090.
Ray Ban$ (Chris Lie cover) #ResirkulertLyd
Ray Ban$ (Chris Lie Cover) #resirkulertlyd
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47054d05ed6f65a4b49cc6ff489f893ee08356534ee80359c60f324d0942047c. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:18:19Z), 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/NOHLX1422070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ba32ba37920ac3ddaa40c1bd716d9764910804e144549e3d9494ad53a652cd. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/NOHLX1422080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68ff5c3fc6bff1ad98c44f225be34f7cfc5c45cc2f2af492fedd3c1cc1bc653. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NOHLX1422150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cbfa817b67dc2765181daa3a16564c0ad3a542b24d850018bc9a190907f753d. 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/NOHLX1753010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7c3b1dab4d11d83e1322d08b8ee5cc89e0522b1a2fd175ff1f0c9aba2438a8. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/NOHLX2000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b59fd2c3ae96a49dd138556cb6b0601458302c5d54689d1bf5f38377c93183. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/NOHLX2342010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd329abd64eb621b5e3252d9739985946049a3538ce99d562b512e5cd40c4661d. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:49:07Z), 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/NOHLX2342020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce68a26b5f5eaa6a64bc4071d9535a195809fa2b65dfa140adba31d80a39bd1b. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/NOHLX2342060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x110142c0f2b3e90fcdae6770985749257f892a49b0036aa3132f022d3a85d00f. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/NOHLX2342070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bbbeccfaee3979f08823658a2b0312c0e673af447c9c0b239db05320a3916ec. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NOHLX2200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7c3b1dab4d11d83e1322d08b8ee5cc89e0522b1a2fd175ff1f0c9aba2438a8. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/NOHLX2000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05fdeaea4fce2ff8121c445256b85dd92ee96782e302b30a64a36f3eec1408a. 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/NOI761307020.