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 0x1e1ca411240197ca9fc0577abf1fc099ac5345dbe69c03184b76d26dd8914622. 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/e004d68a-483f-4d64-be4f-4c6d06ebf5da.json and https://artists.proofprofile.net/proofs/artist/e004d68a-483f-4d64-be4f-4c6d06ebf5da.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 0x8549721a66b0de02f7231b31e71e378ede03437fda151c7d6095b8869ad2df0d. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/QZNWS2179074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293930c874497dae47c628c1b7180cc8ea43c23b49b4679ad4d219f86d971f78. 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/QZAKB2336759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafbc85fc63a97155fc8d6f927bbdf6b6c57fb320148beb17c151e44dd51ad6b0. 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/QZAKB2336760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ce4b706adcbbd427f3fc84d9cfd24dd051b8d93d68bff38a3cacf098094311. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZAKB2358563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d3d53689f7ebd84e7e72f9846ad64fda004c8a798f5bc74be1c797ed8492ea. Chain 2 (Bitcoin): anchored in block 957540 (2026-07-11T08:19:50Z), 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/QZAKB2361342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a90820ef88fd56b8888e69cf5de7d9a06b01d60ffd5268f7e0c089ddcb6a55d. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/QZPEW2465163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f81517b67bdb60711209d2d0985dc14ade40e9848cf884eb5789e2b9ce5f91. 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/QZPEW2480671.
she only likes me for the money I don't have
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x458be2603b642cc1f669ee398d57fdd8567a74d9843edbfbb1ae502138cbf6bd. 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/QZPEW2480673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe465fc62d2c35e2402e693c03b677bdecc15d42328fbc92cf46074554da45c03. 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/QZPEW2480674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81cf32dbb850eeaf30b2a95de337e81cc537c8de6e00de24912440e223988ffd. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZPEW2480675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2680f8818d439cd8a7c4be43e22e1e92cd194c82d9c3258fe7b0728498be57cf. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZPEW2480676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f549cb3fe11dbc205ac7ff9a801e398335ed06987bc28f2849becd448440c1a. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZPEW2480677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd99e9abc69ff925ed85a3e7e77cb2217536051cb7fd914bb00dc2c4740dd79f. 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/QZPEW2480678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf462139a8c313812c1cfe297dd9bddd394c8463a73e0308aca1f806e59da1f35. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QT2VB2494489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2bae0fa8820250ce7e474f97cedeef8ac71be2011b53b67e7ad85652c40227d. Chain 2 (Bitcoin): anchored in block 956775 (2026-07-05T10:41:06Z), 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/QMBZ92541687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f1064a3ee345106809992bb8afbf2140b4ef9f1d99388862d57b54816e94fc. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/QMDA72594893.