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 0x79b00eef3aa36805bd035f701298a5ca64c656efa802b1953e94851ae447083f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/555a5542-297c-4352-902e-42e3b1c75bf3.json and https://artists.proofprofile.net/proofs/artist/555a5542-297c-4352-902e-42e3b1c75bf3.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 0x94831cc26dbfdccc25402e09db0b4b8cce649ee92cfdc66c7d83acda4e6b985d. 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/TCACO1636665.
The Black & Yellow Bee (feat. Hani Niroo, Shahrzad Beheshtian & Makan Ashgevari)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae180aac5de99716b898e77c90fd6f12e547f34cb900fd15b10b1d8fcdcbddfe. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCADH1764002.
The Little Sheep (feat. Shahrzad Beheshtian & Makan Ashgevari)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaccad96ff72528eb2e70d37c1f18e2c3e9780e7181552d909a0253ec4b7208a3. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/TCADH1764003.
The Cow (feat. Mastaneh Hakimi, Shahrzad Beheshtian & Makan Ashgevari)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa076c50a407f209d18908caf4eece87b60f5902dc7ea7719cac9ea965b507669. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/TCADH1764005.
The Farmhouse (feat. Gazalle Baqdadi, Shahrzad Beheshtian & Makan Ashgevari)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15c4a759a4c89ce6e844f571aafa9e04c60b3a57697335181988e4927389384. 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/TCADH1764010.
The Tractor (feat. Farzan Farnia, Shahrzad Beheshtian & Makan Ashgevari)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb177f2a92e1c2f0db056488a4e971cae150ee7036f49d50bfa9699322d59c1a. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/TCADH1764015.
The Hen (feat. Arezoo Abooie, Shahrzad Beheshtian & Makan Ashgevari)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f922e5b598d29666816d1d3e59316251c129136b85a9851e85ee4e9faa4f203. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:11:47Z), 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/TCADH1764019.
The Food Lovers (feat. Nastaran Kimiavi, Mani Bayat, Shahrzad Beheshtian & Makan Ashgevari)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20554ddda9083f982a517a827deed0bd8414a35e7d8aea4ffeaf153f5bf7ae9a. 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/TCADH1764020.
The Seed (feat. Farzan Farnia, Shahrzad Beheshtian & Makan Ashgevari)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490373f35998d027410a0730de33462f9867105efc3b44646b9f2697ee6057be. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:27:20Z), 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/TCADH1764033.
The Duck (feat. Shahrzad Beheshtian & Makan Ashgevari)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ca6e43a0bc117bf5abdcc8805a1212d0e4b8ee16721c17a442cd8594f8c39a. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:24:56Z), 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/TCADH1764034.
Namak II (Iranian Folk Songs for Children)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52772ccc0cc3e4471f606370b573adc6cef6cfd6206cc9274eb5bbd4b5b7e7ff. 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/TCAEE1944679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb670ac65f40435e2321aa250a9070d508981c357379b3069739142b06fff6f. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/TCAEE1944937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce01260eb374bd58a49631645c406b65eb10546069e973b6292d52a78f2aa5b4. 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/TCAEO1984127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393f4b47f4d4b16bbb1b9c8cd5ec14c5e37b0327d634e17e9f72cdfaf33026d2. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCAEO1984133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f54fb40781d81aaa8cf5b94a2f239b0947dc9b97d888ee9ea155ca072622d95. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCAEO1984137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceabb981cca89b136bb4df3f83cdff9bcd09293df0a89edf11833e50cc0cf3b6. 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/TCAEO1984138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a944ffacf59d68528136d0052e7eab7fd6ecbc5d1f2799ed282d9c82b115c9e. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:27:13Z), 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/TCAEO1984139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071e5d1aadf10c72cbc47da800e2944a6a77f7ac493c5b922243891a30954574. 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/TCAEO1984143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed627c73c8c433937568732be9a0ce49e40145d64b6e34d73dc4858b62d2f9e0. 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/TCAEO1984286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69c99a99c0558481c71187349230564efc2c07baed1a47d1d6e6ef6939c7e64. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:10:31Z), 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/TCAFW2161657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a6f4344767df42855a2d657534e82cb5455dee2508e1a52b2d0abb6732f297c. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:03:40Z), 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/TCAFW2161665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a045b8f2134d0e0433bb3ff599bebf87ce668cd9e95f31532b3ed3de8c53a94. 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/TCAFW2161771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf00abed658d06acc2f7e566507ebe6f56e6febef98254eb9941e67c21a8b98e2. 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/TCAFW2161774.