{"copyright_id":"0x01c38e290eaadc56e28f6835e1ffe19e281b24e98b450947d4db6d7a863500e5","name":"Conjunto los Ayudantes de Huacasco","registered_at":"2026-06-12T13:10:24Z","symbol":"NIM0307598","token_address":"0xf11dcf462c3cffcb99b3dd627b7155baeb6d61c7","type":"artist","uuid":"ee8f2342-8ce7-49e7-bbaa-ac69d0dffdda"}
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 0x01c38e290eaadc56e28f6835e1ffe19e281b24e98b450947d4db6d7a863500e5. 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/ee8f2342-8ce7-49e7-bbaa-ac69d0dffdda.json and https://artists.proofprofile.net/proofs/artist/ee8f2342-8ce7-49e7-bbaa-ac69d0dffdda.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 0xe34d498e512ef5cc7078ec4133deb23994b3535f9b158e6eb71401b405a57646. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/QZ5AB2112001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9e4ba9c271a02b63a491cba93fe08a80063cd29e8067338eddbfae1e50b07c. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZ5AB2132884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe538e41e2b9b8487877937ad4306ca565f8c3f0362d10070a64dc954a1c61f8a. 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/QZ5AB2130696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29367182f00f57460c7b52c02e79685c09e98a7725bed331d83f8e0d2b6ad45c. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/QZ5AB2115924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed70eb1854b291bbbb69a5758af10e8d36a29098f742af9b34f89eb09285ad5. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZ5AB2123627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa601bde844731e52d0c26d6b113f5c895d2a1a60b0f90e59eeba999b3c50f24f. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/QZ5AB2133793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf776d8f3c327279687e05ae54f4a4363d59916a603bcc6b163f4f16e60c6032d. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/QZ5AB2130592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e278d5dcd98363cbb788e1bebc8f83c660400803a8c611df903dbf760b47a13. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/QZ5AB2184259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61805e8f1ab0a46b052b53744200ff031724bce8eb48fe2249901fa57409016f. 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/QZ5AB2185205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78663cdf851b77e5a2ad20296fd8ffec10dc0bbf5a4abffdf886133325bd711f. 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/QZHZ42299424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61bb76bf66dfda417d4fb984733ce4ddd0c1e4da5e237ad3b8fbbbd7f946471d. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/QZMZ92375624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617958c7c33234612efefd5ef077a25c9bf40f6ebc1558b314d3ad8796e2e030. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZTVM2331486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9e4ba9c271a02b63a491cba93fe08a80063cd29e8067338eddbfae1e50b07c. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T02:17:57Z), 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/QZ5AB2132884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca348c048d7f0001ff3c03e10da14ae41c0e4ae213296996d44a812180bf8f9b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZ5AB2130666.