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 0x078d390901522612e774de14b7af855137a08b3abc6aebc76a0d35ba35cedb78. 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/0ed02088-c4fe-4d07-8579-02a270b740bc.json and https://artists.proofprofile.net/proofs/artist/0ed02088-c4fe-4d07-8579-02a270b740bc.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 0x8c807519d42125cf6a905766d7027eb110a814e32edc359200e12a4c3c6b2e75. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:06:27Z), 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/IEACD1600684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be2664bbc71a232563532f7813d6ce6c88264debe03a007f562fa598fce7e94. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/IEACD1600685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323c3b5e45fbcca1c141788ca6384c515f10894ac406f56d165bc6b21ee95ab2. 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/IEACD1600686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f98831845425ac1a08769a9e4273e9623314cd6976aeffae5d64dc23cc9a89. 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/IEACD1600688.
Kyrie Eleison IV (Missa Cunctipotens Genitor Deus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e50ff13fc03f5f71175ac09b3767f199cdfbf6422326208ab247c18a4ffd15. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/IEACD1600689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e01c5439eeead020add0ce1eb412b250141f8d693efd3a36a04860e9da6b276. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:06:28Z), 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/IEACD1600690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4a223d95e178a90b2faba656238f631930cb1695d29983d3a26706331e4129. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/IEACD1600691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x184ba515b461abc0661e86f82f7e446ba66f4f740e19df958a6e84fc46894971. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/IEACD1600692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc9f6c24b3dcbf3bf2a1b36f0458976f6805d08685c3ec15fcba7f4e33e1bc6. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/IEACD1600693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c73caeec9ca3a86f5c5de75ed546668aea8e6bd8e689d14751971048700105. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/IEACD1600695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa900180d97904f6c8ec009debe8cd6f14da72a1c950d82705c8d54294cd73132. 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/IEACD1600696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x552c311104f4e76ea9b5f089ca63aed882d6bcf05282efc80fa81cfe3ea0fdf1. 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/IEACD1600697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb98dd54ec8e7509c74904696e29ccff306de9359a7912bdaa2392bdb6d7726cf. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/IEACD1600699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd2941006342c714c66bd16e380114e4c7e780874d31bd595235f40777d6a22. 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/IEACD1600700.
Agnus Dei IV (Missa Cunctipotens Genitor Deus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c77dfb9bde422a39a0673716de85e5201703e7ab9478d460c5f98415ab4651. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/IEACD1600701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4326c1777ab0a33b0296d23e6e0850fa7615d488a13a151da9012b6646732b. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/IEACD1600702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577ac54dcdbc4911600a37c49a38592c7b56397a957cf43f429ca00849529a29. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/IEACD1600703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b8a5b271db91af343bbb953f64139ada7a4a820f63e81cf80fd7fbf6baa071. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/IEACD1600705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5cdb48b35d7feabc391ee55c68f13b4f4aa6ddc1cd603f41410cf30987c556. 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/IEACD1600706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa065029d0d50562c0b2ac81c7523b576795d4f735c35dfce6aacf169be04845a. 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/IEACD1600707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d1cb2faacb77730ed516ad331cdbe3d1b088e06180eadbb0513a762f44dc88. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/IEACD1600708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e0bb81c0db13952552eb8015fe0be0ee594ed68a2ae2587fa41d56fea884f20. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/IEACD1600709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04464a8a54a2f798510d8948039d5f158017e2884cd4676d111645d26e0a08e4. 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/IEACD1600710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4dfcc3a449a240f75df7a4436eff6785fc6cd1b08c4b3fd667b1cf117b792a2. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/IEACD1600711.
Dies Domini - Sunday Prayer At Glenstal Abbey
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b5ba55bb28be4477fc2572bce4cfa9f5c1e1321841c37cf3733b7b4f6195c3. 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/IEFJB1301835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f624ef6ac2d54a48e97d468e14b42cb0b567921cfae31d9d2359e8699c202e. 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/IEFJB1301836.
Biscantorat - The Sound Of The Spirit From Glenstal Abbey
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c4f84d650f109b16b6fdab38f1c30b8ee64461df466558978c4e58ecdf98b9a. 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/IEABG0400089.