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 0xd7d0940880191e503b79c94f26141fbf69c3502e360cccb0ca80a070543b7ec7. 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/4b176149-e815-47ea-a3c1-19920640db6c.json and https://artists.proofprofile.net/proofs/artist/4b176149-e815-47ea-a3c1-19920640db6c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Klasszikus Széklet Az Eredeti Recept Alapján
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 0x82319495e15b7ce6f7b11a94a0a375a2dcaebc5fd9c18317a0f6c052d0564a86. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/UST8K1819173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9bc8d32966443103540302a3da962beca1615ba03b6d3d1d0a1534b8a2f3de. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/UST8K1819180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa278cfbf355dbc9abb7ef8b6e355be376ba53b69070068c472b80d582e80f4e6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/UST8K1819186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2dfc42adff89becbe54107135cd4bc508e60de3b124a7004b8a13bf3c57620. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/UST8K1819187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a32a4006ec6e87ee8111cd12babe2c6614bd46a8436174a0e32c087a52ee501. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/UST8K1819188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90bb4bb5162aba6cd84a947798db2359d16328d376d8ce5f3a83c00ec5786a9. 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/UST8K1819191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199d022deea340210236d6fb39c163e02af9c933801c44ad9f81f71e18b742cc. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/UST8K1819193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a6399588651ece637a82b21779c51a830b2d423c716f60e4b2d5291040874f. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/UST8K1819194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed5c8d6f3dc1c566a97af924f7ad11bf6afa5136dc4dbb265adcf348cb83ac73. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/UST8K1819198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66b4f824f52e74a39f400c9f1bc8ccf12ca86781b91e7a9f4f1a2c8ae8fad64. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/UST8K1819199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2fc9b3d043817e9f882cad4ba27d073762a8fc51d7d7bb733e85f713d040779. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/UST8K1819201.