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 0x73a7bb261aeef49e09e677782000d65a44f6f6122f430e634a74d6c7575419a6. 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/414c5da8-b320-4f27-a8ae-344c9629c424.json and https://artists.proofprofile.net/proofs/artist/414c5da8-b320-4f27-a8ae-344c9629c424.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 0xba935affb75fca47289e812327d87e4b791ac9fc927f822b58d4b4cad90f8e50. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/FR59R2151338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a495bfd5783b592ee8ccad9b79422032bd3aca48d8c0c5db6522b3d969884ca. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/FRX202092736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ac6802a00ce702911b482f5ff5e43e8eaf011ffee36a898cf7012826c33f0a. 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/DGA062021127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23cc760a4568268e7114bc9de6696a9a4d6c0adc5c4a5759759f89026ad1677c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FR10S2120385.
Popurri: Gələcəyəm Gəl Desən, Araxçının Məndədir (2021)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fc8f2d5fdcdc6af2029492589b1ad0276f3776c9cab00638f62c3ac3bdcc797. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:52:59Z), 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/FR59R2216348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0c98ee9d6fa06d696febc5070dbed2325135bc2e49e62d67e3e1fa64693985. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:53:06Z), 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/FRX282250989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f92d41dbddb3e29880ab4c05be7cbcccba0ecf51b943fec3ccad4078c912a08. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:45:40Z), 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/DGA062269565.
Ayazdır Gecələr / Gizir Oğlu / Dəymə-Dəymə
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70eb97ccb082583cbcca4a3d83c33d8fe7842af2e1a8794509c4c33a9cb79e7b. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/DGA0P2390736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7962ed6c486806d83675569d89aeeee53d7e33ceeafe8abc0bc9fde6366297. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DGA0Q2392743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740547567397553136c96f91aba59fc0d51bd35196fb030f3ecdbf70b4e5274c. 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/FR10S2535857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80a9be589c92190c3ec42f09dbf256f0563c819f8d6d4e8b527681efec15cb4b. 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/FR2X42522204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83c37e3a7fbd5c1429fa9c4a683527c31eac41fd401d6924e622321ea1905e0. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FRX202588638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdafc17bacab1b242beb0cc1bbec8ef57c5764266143bb4fc89aff7f239a665bc. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/FRX452515088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e92de1e84035961ecf0b061a10bd490d29017d4048ead5cb99b72cc9923f7c. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T16:00:15Z), 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/FRX452542257.