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 0x4c14dee0fe085a39da0894382857b52090ea989acec46b00cf2f5d0321a06464. 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/b5869a72-7216-4705-8fea-7ddc21cbd1b3.json and https://artists.proofprofile.net/proofs/artist/b5869a72-7216-4705-8fea-7ddc21cbd1b3.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 0x51d5459c1806f78b1d249e3907eb9cfa6312aaed454b62420b0a1c9d7cb60604. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/QZK6P2145093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0247056eac011ecbe146c2ffe2f7d235e942f13d84d0a50e71e531424c922912. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZTAU2187952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc779f72cdde588eddc6547eb3699edc5ca63d82b111051adc247e73adc2b416c. 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/QZTB62264398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394df390886e9c3db405701b8ff41aa24eca4e108a793f0a6ba37c7921e0c2d5. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZES82396640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1e3181fe6a610048811925ec74c84ca6feb1e3fa31fa3218bf161daff78ce7. 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/QZFZ42304377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6d393647315b33d7d271afdd9050022dee94da5e322a73a0599b2d5e31a234b. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:40:59Z), 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/QZTAU2328326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26683a4cfc5447d7372a884a0c40d550971a8d71f55024eed20fd1ce008fa8e. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZTAU2371304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392eab91d84dee63e38127e62c804afd88d7cd1f75b0a440aa16ce747dff0472. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:50:21Z), 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/QZK6K2372568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d8e4ea9bca4d35df41f2af496c133819e481f2d576e54498036f39aae0ef76. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QZTAU2371306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084f7600d7d156ffc9f0e0cd02d779de81e55ee66c1976dff68f53e1135e91a4. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZES82396641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87180ce8ee69347f2e6b7e8974d616b9fa2e5f68179c29503203a3b583627df. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZTB92470285.
Somewhere Only We Know (Omnichord Version)
Somewhere Only We Know - Omnichord Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c859eaac57a5e0479efeb0fdc2218941ce60bd532aaaec4def1bbad7a8fae34. 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/QZWFK2494534.
Secret When You See One (Omnichord Version)
Secret When You See One - Omnichord Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbfd99ec98575cefeda00887641a79f42f1780105756fc7e5e061b7b6531b63a. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:40:17Z), 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/QT3F22427438.
Omni Classix Volume 1 (Omnichord Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87180ce8ee69347f2e6b7e8974d616b9fa2e5f68179c29503203a3b583627df. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZTB92470285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e63394949ac16df783f2ed9e098f9e0112e9d14260d0d6f71d69ed4dcd6ce0e. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:00:28Z), 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/QZES82565125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbfd99ec98575cefeda00887641a79f42f1780105756fc7e5e061b7b6531b63a. Chain 2 (Bitcoin): anchored in block 958660 (2026-07-19T04:21:53Z), 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/QT3F22427438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c859eaac57a5e0479efeb0fdc2218941ce60bd532aaaec4def1bbad7a8fae34. 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/QZWFK2494534.
Dumped By My Best Friend - Omnichord Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48dd82c40034806e303594abfa009738aaefdbf1276627a126fae763d785fa4f. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:20:46Z), 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/QZES82565127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12df73ecde78e51feb50bd1bc38cbe359bb5c0c62c9a1aa4f22a8e55fad4974e. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QZES82565128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6092268f97175e1af69ab2c8bbf34b9d7ba1a03bf1760b3bb1c9e841c3801bc. 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/QZES82565129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc207f86700a588f6177ad276f8a645f353ddcbaf0a5347fb720c90b2573df8c6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZHN82448284.