{"copyright_id":"0x14f419276baddda118b12a39bb89cb85e65e275302ff2bcacb95b777db7b7afe","name":"Schola Gregoriana Del Coro F. Paer","registered_at":"2026-06-15T03:54:09Z","symbol":"NIM0673924","token_address":"0xc946ec33351c660a47ddea7bee9fea719ff6540f","type":"artist","uuid":"de92ad6b-fc77-4c24-8c60-4bd5e37cef6f"}
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 0x14f419276baddda118b12a39bb89cb85e65e275302ff2bcacb95b777db7b7afe. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/de92ad6b-fc77-4c24-8c60-4bd5e37cef6f.json and https://artists.proofprofile.net/proofs/artist/de92ad6b-fc77-4c24-8c60-4bd5e37cef6f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gregorian Chants, Medieval & Renaissance Music
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 0xecaa352d7fd362bbb19c323aea53505a6a0725a0b649b7dd7cb87d6110b47007. 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/NLG620407326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7478052826e52d5a3530b8a06a07518d4c63cee2733da5e1fae4cefab039daf9. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/NLG620407356.
Healing Gregorian Chants for Insomnia and Anxiety Relief
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x478da57ecf83464ad8746ebcc82a60860b90af75c93329124f190e3168e37cf7. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QZP7F2599083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a56a0b62b9cef1c6a9dd783aad10f3c79f9570096b1c811d0c5c5c34306801a. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/QZP7F2599084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5850881268f7d7acde3ec65271e1e20d7e0d2157a81d809a735b19e424c1647. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/QZP7F2599085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17918e1b69f5392f55eadbd45ec691c331ab1857e683afc598f1d64e846f26ab. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/QZP7F2599088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93fb277b027b15bbf49b3b1eed71d9592753f1d268c913dd2dc053291d1949b. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QZP7F2599089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c197437307d514ec3fed636e23c0602de6883d062c0a3b6137e2ea19abf4da7. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZP7F2599090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae0bb37c0fa39a13322eb495dac24abbee1207741dcaf2a4b84f59b32303b15. 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/QZP7F2599092.
Gregorian Chants for Chapel Peace and Prayer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030816ac14356687b23d6369fe86ce1ba68d9631573cfccdf26df6f090ca5db7. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/CAWK52501728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1759c09b14969054144537ee0fa4505c8982b1c42bb4ca6cdf4cf7c0a8ef702f. 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/CAWK52501730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52b9e27c2ae0413e06d9bb68bf8ce6384be9b330048f64ca792efb304fbf2db. 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/CAWK52501731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7505f302d1e46ddf99d9309fd414a9ce6205292279459793f9a00b5b9a19d321. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/CAWK52514502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3170938dd023d4fec6cd4de1fb5c0d867c9d74b4011cf4bb0ebc54c76d4a848. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T05:43:55Z), 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/QT62U2526763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514664b10e2368d5e37b782d7fb96aa32c545b0ffbeb454a028427da7a6a49a3. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/CAWK52515423.