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 0xaca248bfa1250508fc03de789bce5ba0a5de1a11b0b234292c6625f34fbd824f. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e4456005-7de5-481a-bcbd-fe1215c9a6d5.json and https://artists.proofprofile.net/proofs/artist/e4456005-7de5-481a-bcbd-fe1215c9a6d5.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 0xe5401ad89e041aaea98c541837d185f91afc2ccca5a39dfc04b94aceee2d9bf5. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DEG932401406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6837d42a263a778e10453fde8e9a0a70dfb54e030124e1a267549ab2448ed3b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEG932401407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x017e0bde0e83767e9e67bd4601421995be8d8bd23d3c90aeabec52a60f9ee79c. 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/DEG932401408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x720eafb89431b301e7f25bb97defd2c386f2cb24c349a8b18c4f7a64afdffffc. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEG932401409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1290f1b5286259e34790a7941bd12e66ebaaedfaf6df0c4285decff166378280. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/DEG932401410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a70d43a08675402a0c40954b14c39ce153601486127c4c72f33e38ff72d48a9. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/DEG932401411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72555d0b2d2629459e08b6e86905afc364f7124ec18fa8d3e8756f7d2bfd1bc9. 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/DEG932401412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3adb1cafd3ca5f35a97a6ac7862022a226009d45ee1817415627029249c9e29a. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/DEG932401413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6735635084e3186b782ccb9563e7c5c62bfafbb656acc269b7685bf4bf37623d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEG932401414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd80410837656d5aaf5d83b81245c4d8285f00ed176353a39e96282900fda5f16. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/DEG932401415.
WASTELAND: What Ails Our People Is Clear
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352aea23bd523aaeb5a5fbc57da4cf275ac929f5988052f576ce41dbdc4c4b02. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/UKWD92000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d84412dfa860dcecd063e41e827b595ee1f2291dbbe1737f8d8725e065cb57. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/UKWD92000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b427697f74ad98e30cc520b5642450d38f9c8384d7c23ecadc5eeafc28ab314. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/UKWD92000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ac8a196015c1f01cf4383338d2da0246a0a1c70f0c2a184a48fbc36c2eaa36. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/UKWD92000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e50b1200072836b522cb9514ee95e11e1cc6748abf48029d5414d5e113a351. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/UKWD92000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225f04638c51701d4abbf2810abf2ae9832d44638c41b332d7ea8da345e338fb. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/UKWD92000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5731a3bdc4034886b4953f9d3c28e96dafcf22d56531353b59365926fccef949. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/UKWD92000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad37e9e8c47aa76658e102a21559505670813d99827e31a8cab0948fb365071e. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/UKWD92000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f84e7233b3c98eb7beef832d629ae1769e7c7592b9fa5ffc775aeee8561f737. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/UKWD92000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc74003401c00a1adb3cfa7e7d0181ebca4e7ccd998148042bba742b777eac5a1. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/UKWD92000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x017e0bde0e83767e9e67bd4601421995be8d8bd23d3c90aeabec52a60f9ee79c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEG932401408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a898d415faf28cbbca5c7f06bc8b3f3a620cbd656653e30b9b1b4fa9979736. 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/UKWD92100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3badd9867d0e8d123cd161507768ab886c472f74fc8e980b6f0fea27a3ad9077. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/GB9TP1901758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e132d79408f27eac3349a8adcde153d80593dccaced6364ff6205e70f0908db. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GBKPL1780744.