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 0x687ef65a12e93a296ee37bddf19a181d78562eff5d7400abfeaf8ccf3fe0a744. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/784e4636-8512-492f-aec2-ccd64bfa1d1a.json and https://artists.proofprofile.net/proofs/artist/784e4636-8512-492f-aec2-ccd64bfa1d1a.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75352f850dc5f3cada2f41ebac64e152c547c98cbebc99a6183d73558dedfcfc. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZES92012759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06fc16b79ba2fb178dfdd6da74ec6f58c6079106ebee352d392d12ca3f2236db. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZES92012760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48f8c343014f06092e6d44baa8d4066fb69fcae6da441338223319929e720b8. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZES92012761.
Escape Riff Island: A JTC Masterclass Original Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc73a7db4481080c63a8dbe3119697e3cc0ac903219ec3b7fe33a3cd91ca06ffd. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/QZTB62259874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f8a41eafb091f878fa96f9df41a210845ac3bf732e8214d1b98c96c504ca73. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZTB62259876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea631af3ce68c82f2337872b8617791aede1be6527f5d39f81fd58ddcc86683f. 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/QZTB62259878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225c961ec4d270abbba0a3e2ba5d393d40abb46aba3220eef2704d9dcb43aa0e. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZTB62259882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82cb2fbae3436a20030bf583a796020f3c2252ecf861cf7eac0845cbdade875b. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:28:29Z), 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/QZTB62259884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8bee91e318a4ab45827526dddbe5100e3907c624e252d9b4955a0de26c97c3. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/QZTB62259885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6fc87a476ca472928a77233440f2131f95696f67a4dc6134151815713c2931f. Chain 2 (Bitcoin): anchored in block 958647 (2026-07-19T02:36:14Z), 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/QZTB52530591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc14cad500d4757709b7a7aedd1122d0c76b546cfbb027f9046bb3540341b1604. 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/QZTB72548435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a2bab3abf9759f9d5ae2cac40ef5fba4707a1f1080494de9f3edd32f5d0bc58. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZHN62242069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2081a76642cb7cac322d2b26186b2031f2cf1bc10e70dfff8eec6e306c06e177. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:39:20Z), 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/QZTB72548437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b79581027ab8f4582066736709e4e8a02566050bc6a13e2ce5f9f8448c25940. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T11:00:16Z), 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/QZTB72548439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6fc87a476ca472928a77233440f2131f95696f67a4dc6134151815713c2931f. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:03:35Z), 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/QZTB52530591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a3081067e72a797ce94164ba17686552bfa9da0b021a1e461bea8c3d3dbfef. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZZ762436254.