Peter Graham may refer to: Arts and entertainment Peter Graham (composer) (born 1958), British composer Peter Benjamin Graham (1925–1987), Australian visual artist and art theorist Peter Sebastian Gr
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 0x3fa29a193e812940b98138deb1ebc33c84a4a045e1911a014a9c8bb74bc67742. 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/10229c5c-b63b-4b1c-99d6-ec0d39ed0ac1.json and https://artists.proofprofile.net/proofs/artist/10229c5c-b63b-4b1c-99d6-ec0d39ed0ac1.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 0xfa054270944ec279f1654d16fd89a3ee04e052a4a8a34f10fbdc1d8489c07ea3. 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/SE5W32201697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b9d478653392b3ab4025c424c5d7888dcd45e7a84cda1a7a504f33b6b1e2c3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE5W32201698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb591a9d04ee84883d661613f30c23e2d6e16c5c8c6317a2ee2e1e152ef2f5fd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SE5W32201699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dab72f2e20b035778d3b651b036f0ea1d66a38ab25ddec96fe701bc70cbb494. 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/SE5W32201606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc53115f2fed4d7aa39e16bd546e6f4701ac180d7a32ac2f29d53c4ae1213c6. 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/SE5W32201607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d512a5acb8f1440a48b0bb78df6e026b7c4e23d71cdab3162d6c408ded3a75. 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/SE5W32201608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04819ced90363e7d061200f306b9a016f692bff9291353336b71050e49f69c46. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE5W32201104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e4f631bb4feed84838446cae21eda5625a71694308d1640983ee3fe2c32fdb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE5W32201105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92da56db59c5f1c5d05b9e866dd25ac39b582d9887adcd766a8cd8e2ed08e942. 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/SE5W32201106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdabf5b1e49afe6c17e0456e05249f83bd8454431a4589259ffc2bd984e4888fe. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SE5W32200711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25bcc927ee681454c73f0d63ea64accf22c85045dc6cd464e3b166ff77bfa85f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE5W32200712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f7f4ae7dbfde0b642e2066195483f8da7d1e73ea329f923017add60aa31c7f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SE5W32200713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62aec8a5707764cbcc54153903f1dedee98cb22fa3187349581db7758b06d87f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE5W32102349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f3279d2aa8caf3b2ebfa39477906ec4deacf2f955937c5bb25e6a96af7a5f34. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE5W32102350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be1dddc7369c006afe86782e35d58596081cb85da2fb08ec7685aac5acfda35. 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/SE5W32102351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ef3200cb7d066692eee8848b327be165774e344b83c2f8b3ff204bd527503b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE5W32101165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ce24e35383b48a8c81888e349fcf52d8e7db0a18088b6dcbc7e02597e856e6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE5W32101166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe199507b54a7c827fe2ab13e8956891413ee4456d2442390d02d3ea3ef4186dd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE5W32101167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f54d217242c1470b24741f138a609ce0db9e12afb3cab4a59eca02180d23de. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE5W32100966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363742fb4b9a6d58e1eb4c9db1c3d816459fb977a1ffdfc1a0c01da25401605f. 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/SE5W32100967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535fba59e88ab4b6eb07f5ee51d1c106ec632624e02fea97dea02a34acaae6f4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE5W32100968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x097cf973183ba15aeb4748946f05a23320b1ee178c6d97fbcc0257ec4e407313. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SE5W32100282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c43d71e54b402f25ae6a0a624299125fd622593371422ed3bf67311d821452. 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/QZDA52410213.