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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd918286de38f921307c473c9b7ff7684661256021ee1afecfd93f44ca27a46b0. 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/31ac4300-8199-4dbf-bed3-3f2b380350a8.json and https://artists.proofprofile.net/proofs/artist/31ac4300-8199-4dbf-bed3-3f2b380350a8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Medley-saint esprit,tendre ami,molimo mosantu
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a82dc9c78abc36162443f4eefd82df9f52e66ada07f9e7c0f44e039bc359bd. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZFZ42246426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d4bdebc533a4e389827f63e0949ce6b72e99c275a8752df7f829c2c98eea7d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZFZ42246427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda045dff4252ffcc37dd0dae8db58a2d91e8dc294b9b32af4b12906cb1548cfc. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/QZNWR2254645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed1f5e79406e269438c49cd56e8b03f1b626d3f0eff2e03065e9748dc47ee399. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CH6542337310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49079a14c5128eb4a2f70a2e65de866f704cb54e4e70a17c23ef6fd2eed17e68. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:07:42Z), 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/CH6542337311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34998f6498b17c9b1dce593ce51448646a51841209235cb8147fdda521b7ca78. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/CH6542387586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ed8300863e00733b546be21fe9af8e7ccb01c1b25b69c4d7073d2b946c2315. 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/QZHN72438805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab03cb0ff92b560aabce3e06a4329e2af6af72d2cb30364048055aa4dd75935f. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:40:44Z), 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/CH6542434652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb289607475bfe0215c55bf45532cf82ca2616d19585227cc3d80a658232a4bdb. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/CH6542434654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc0c02caafb2e6327e8e7959f992366fd601ac63c51b031d55b8ccf0cd008d91. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:54:57Z), 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/CH6542434655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4495fb63bf5620b7d4443bbb842e6519a8bf441104ac414b7b73253e9c8e4c7. 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/QZK6P2518249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c60c102061bec230caa0ef8ab2ad387749e9c3cef1fda47b5e0dbf0376479e. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QZK6P2518250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x336e8c5aa824b51475a9aeca168777bfa03323af02e1d17b9d0c453e5bbf4ec0. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZK6P2518251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb615b40c3544233656bc232fd46b116f27c7b4ced22df381eef676d1726cb7b. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/CH6542541054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313161df22a59e8c3b4ce16a4a57f84b24165b0f6486b4bd42b3f1419e773f02. 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/CH6542541055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2fc82fae105d6b88ff82266eca089ff904db837cdf09ae48b64ff3acd26cc46. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/CH6542541056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb629ea8fc1eb63fa99fcf7373846c415f2e1b6ce32c59d346066b93955c5dbb. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/CH6542541057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11135d173e2c60b0f6f56b52ef3bf7ff6ca7d33117e3d5bca65ebd761df74573. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:25:49Z), 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/CH6542541059.