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 0xefaec71adb17e6d484fe118bc05be7823f568d2a699d86d0daf0ecdb83d1c386. 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/4464c4b3-42ba-44ed-9c92-b542325fc955.json and https://artists.proofprofile.net/proofs/artist/4464c4b3-42ba-44ed-9c92-b542325fc955.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 0xec33f7f94323a891cff1920b68ce3c18d47a5418a3a55db50acbdc24ab9e4538. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QZFP52287222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0097b6be8414f65d614a2fddf5b5b5596eed2f062e3fa324b3fb32a504458bd2. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/QZFP52287227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f6097c7b6b41fa10b6f3f50c6e99edd61f2968f0b3d9591033a9de69a46ce0. 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/QZFP52287231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55a9048f466e42150a048ff7806a38169c2d870e1ec7e26af774b8a7f7c8ddb. 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/QZFP52287234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x796b75a67272d5a303c216f76bfb261de6d45f1714f26a56fde24c31f4af70c5. 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/QZFP52287236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56804777c5d93357c211b2b0a937f0f7366fe05a2625e7453321c1037f0bb4ac. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QZFP52287240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x027458d4b9aa19301f4c2c4f51a0cea338053cb057e1a2a4a51d45550cecc886. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZFP52287241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4c132af67145e4dbbe52d516032c00ca2abda35bd0442e2621661b5ee28db4. 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/QZFP52287242.
i have to do summer school for a reason y'know
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbdd6d055f27853f4856a122f6e92f52a1167df63df0bfbd8ee3dffebee693e3. 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/QZFP52287244.
everyone SHUT UP. i have something to say...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x373cbe9e758fac4579f6f807efc0dfdca293e09a510c86d5c277e7d3c68562fd. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/QZFP52287247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7326acbb80778c1e18b95d288fcd29a29a0b0d096665aa467fe1dc9ca2be91a6. 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/QZFP52287215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5eb4ce43790539f5de5e5d424e5a0b60818644ba3b9e5f2551dcf2eef8cb4b. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZH5E2283324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ff53198b1966614803d22844fb1718ec5d265a490cb2cda6d59ec39a5ca060. 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/QZHPJ2216222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b028867c36debb0a9ac7533eafe37e50c0533a049c6b0e8cabaf167d87844b. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QZHPJ2228046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ecc5066f3edd3910845ebcfb9577e77629cfa0d3120147f980aab2fc753212b. 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/QZJRC2271141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e0485e1858b30b88779b68ae0ef970d56b8f22dbc0f7cb794f07b07a369d85. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/QZKDK2314136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f877960a3d1f0cf5b314e6280d42c675b9c5ff8504603a49f0fe17cf8770966. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QM8DG2340530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6d6649d66239df8d714765812f5b2c22a514dcbfa82711b6860641055b3f1b. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZKDK2387383.