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 0x14366d286c5dd91a35a07153151d156944b0a4a73aaf7b0f9f9ae3762695959d. 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/6de7c7a7-cc2e-4486-a6d9-e0ed53d9d50e.json and https://artists.proofprofile.net/proofs/artist/6de7c7a7-cc2e-4486-a6d9-e0ed53d9d50e.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 0x5b5169af8015bd37abd70e17caa97943750cd1883eb352e283f0c7c20d740c70. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/USCGH1779779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90bf694723795c5b707441ee7e4dec427a9792989b535f863cadefee1aeb542e. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/USDY41715402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3cfd1714f6a57e2bb055d4a6496e1bfe4470ef48e26d654017af93cfbd3185. 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/USL4Q1764772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5752eac30731594c53d8de5540f7517c8e9b153e14e851e9cb88f4f3edf8887b. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/USHM81820083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7325c91720a7e6b9df3553a640b7c9f49154c907460fc1a0db8f21cacac66544. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/USHM91801622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe8ec14d9870c9fa1ccb3141062b9c842b620a4741f5b9fc77b0ccf2b0445de. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QZES91952441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6acfb98cf8469aa15cc5450af85c372d9f18a73da500b714a798588b2ccb0fb5. 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/QZK6Q1984852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59f9c0523e49cef3a06b9869585cd928033195103dd3c295e3f2dee15fd0000. 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/QZDA62087889.
Hidden Cost (Inspired by 'The Outlaw Ocean' a book by Ian Urbina)
Hidden Cost (Inspired by ‘The Outlaw Ocean’ a book by Ian Urbina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ba85f8347326d24c7c7bdbf3c1ed92ffed2151b349b667b7f6acb2d9106a34. 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/QZK6F2058768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8e97d3398fb8644ad65c93f1abf2d2df8d9f1594c7e0bedcffc54517334613. 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/USANG2176587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8e97d3398fb8644ad65c93f1abf2d2df8d9f1594c7e0bedcffc54517334613. 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/USANG2176587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a52b19ee5d42aee770ffe2e44f167ff78c93c1fc02d38043ffd5b13f348358b. 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/QZNWW2138872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd0752ef35c58eec357e914c7fca138ef76c5c902a8ba2dfb02fc496f8135bd. 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/QZNWZ2479800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa7ac27d2fe0cb0cf11d85100e5845af9971973b5c0b8fb7df95988092a1060. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZTB82472414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46fafaba748aa0294cc0db3b207ed2f68e19bf1971e954399c5a542564a46279. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZTB82472413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e24032670b695472c352ac35f08dde73e8efca5c42ddecdcb5390f94f683bf. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QZTB82472415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27913bf969b2b018ccd0eacf69f43251cafb6b1308c3e72cfe3d55d22a666234. 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/QZTB82472420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b8fe01ff83f86808079fe1ff51a131e33af249ee5ec404f2b4ee84f656a3e8. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/QZTB82472435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe285b41d90e9337e67068f79968a55629570cff1b9e814f954da4e8b7377ccd0. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/CH7812541590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aaea0a7f5d6b49c0452189a36a2e9dfa3e626b17ff24b061da7d462d4ce8053. 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/PLF242211698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4683e067cacc24b42b097f8abf2c30f687bdfc1702b081158766be71926a3ffc. 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/PLF242211423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f50644ab05da648d1360b7f2ae927a5c93d0ed3d460782b260e34e9e2a90ed. 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/PLF242211697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7792c6b992c7a2b7edd30518f3876449ce24296f991f4c467597cf12a3efd5. 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/PLI292400845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aaea0a7f5d6b49c0452189a36a2e9dfa3e626b17ff24b061da7d462d4ce8053. 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/PLF242211698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4683e067cacc24b42b097f8abf2c30f687bdfc1702b081158766be71926a3ffc. 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/PLF242211423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd73addad1fc4ee8b3a9a8e07445ce65e279f0286b0e851d67a73148416413db2. 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/PLUM72300209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67629f577624fe0f24acfab7937a32a49bf9982197a6518a1ed70bafbbf54f6f. 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/PLUM72300210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc331467826d170177fab84ddd83b0299f3ad7662749e8a06366a1dd2f5f32296. 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/PLUM72300213.