thumb|Núria Graham performing in stage Núria Graham (born 25 June 1996 in Vic, Catalonia, Spain) is a Catalan singer and songwriter who sings primarily in English. She is of Irish and Catalan descen
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 0x8c5a3f293c88eafdaf49e437d19802cae61bf743b099eee132db825ee38ca9b7. 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/c7dbffca-2750-4847-9280-e4b14349c133.json and https://artists.proofprofile.net/proofs/artist/c7dbffca-2750-4847-9280-e4b14349c133.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 0xe4b738f69a4522042967a6e720686d2a2325dd65002e2b36d057870aec86aabe. 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/ES11D1700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x101239aeac80593b5884141517a12ce6d3545ae15c6baef8e0a6470572661908. 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/ES11D1700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32202092d27727eed342a87600b210e56b10d56d82e4b4e993ad85944a9fb85b. 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/ES11D1700018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe915f9b90e131d6480c0ee6bf512399a9ae749128bc3acde9096933fe2a4eb. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/ES66S1500041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27cdd763b4e6bae8a40f3f8a068d1052d75a992676c1fccddd66deed3dff5476. 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/ES66S1700038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b5081c40be65fc10dd8a66d4d8ca1e03c62c7379100089e2d157e8afe61b90. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/ES66S1700039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe50c6a4708b1e2c244b7937ac8082c6ca5f2f02ffc62f26bc29582bbb505c3. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:05:55Z), 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/ES66S1700043.
Smile on the Grass (Mixed by Ruban Nielson)
Smile On The Grass (Mixed by Ruban Nielson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d4a9f7ebfdb1f7cf5b36de2e9d9ceb5350ef0d07e89115ab4f8aeb6fb51074. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/ES5701901621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f90038cad62331ff3e6f40f318ecd0d24479c1d77ca8e3deeb01ca00a13636. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/ES5701901622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3737d51cb3405dda5563d13574c7a751a3e73fbe81a59cccf1d81915eefb14c2. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ES5702201185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a85131745c9468a97795a74487d3422762002e80c8ac93c41ffcc5a4098833. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ES5702201164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3737d51cb3405dda5563d13574c7a751a3e73fbe81a59cccf1d81915eefb14c2. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/ES5702201185.
Fire Mountain Oh Sacred Ancient Fountain
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb341f1bbcd3d71ce1702167b0992c54d938ccae14cd6457cd013912733d10600. 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/ES5702201158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a85131745c9468a97795a74487d3422762002e80c8ac93c41ffcc5a4098833. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/ES5702201164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0149aa60bcc99c48ed7eb6bdf95807bc2c2f2b41d8bdb42c97001a40865d840. 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/ES5702201166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8d81dd4a1d6f034b717491fc034f0e189fa8da4c6f88beb75d1759fe78568a. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/ES5702201161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb341f1bbcd3d71ce1702167b0992c54d938ccae14cd6457cd013912733d10600. 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/ES5702201158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c62b21d54a64c0c4269b071e5c907477981842ab6a7f41dbecd0c42ecdb2580. 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/ES5702201160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb2d0d80cc47e8eac7bac865f2aff03db34c3023e4817726e9a8416ae1fc5eb. 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/ES5702201163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x291eee7b83025270c78cf36d5217451916fab7186ac07d6965f3b2e9b50b9c8f. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/ES5702201159.