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 0x6bc37f6531a0369f45a793de05bd637c48f3c578a87749c1e9981678f7b3368a. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e0dcd20-39e8-413d-ab1c-57f62685fc26.json and https://artists.proofprofile.net/proofs/artist/8e0dcd20-39e8-413d-ab1c-57f62685fc26.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 0x84546d86282755bdb32765a63096d603e0bead091cf91917eda11a81de3f8bd5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITS781901062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f84c5c97816ebcc976d8de276db4bd0edb9642d3a1150574919c245507a94c7. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/ITS781901063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000c296d4f84e7aed50af0729417897d2673bedb56ffafe6450abc6f7baa9457. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ITS781901064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaccb5242b0ddaa0e609304d2cd5fb1f479a08c4118efa61c46a7da8411b5dcd9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITS781901065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b54a591a166a20748f563c78a525dcb64b4438ddfebd0d3ec9d8559b4429f17. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITS781901067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fddf1a8b54bb71eccafd0bc40060ee5be30a33e57f422f267c5dd4513b4d91e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ITS781901069.
We'll Live in a Better World - Piano and Flute
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x381a02a78b8fbbb1fd671254a110ab69facbb36c50d3b297beb98b2160c4c6a8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITS782000556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd49d5f30928155f7c084220f64fe897b3ad7373f60291ffa46d900e17a1f41. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITS782000557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0e305693299c37762a47f7e876b70d28658cb9efe31cec34b9280eea0243f5. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ITS782000558.
Just a Little Bit More - Piano and Flute
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246bce9e265d4289f6f780737c98ce3072096c17438f97f1be4323a5740e2559. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITS782000561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0702b42a34ff5da85b7e57bd69a0aa6b6f7acb25c0963d99e8d510385db37f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ITS782000563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b711de3c4bf8b497278097ea82e7dba6c3aa99e06980d1749e9cd1a7c691795. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ITS782000564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e2c792f20f7abc96e806b31fa6dbcba4aaa247407de77e7200b699a93b3ed6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ITS782401708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba25590cc531bcaa92576e04504dacb9fd9b501616433ea122d9b330e12c2b91. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITS782400918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1137aec40c9eee74978d500cafa48437d42fc4ba7d52c56ad7e4d1c3acce2a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITS782300418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37f36d8465445df212753f910bad0f3c192ba4bde0f34974533dc2460fcde22. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITS782200099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0702b42a34ff5da85b7e57bd69a0aa6b6f7acb25c0963d99e8d510385db37f. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ITS782000563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4823b79fcac69be01cde25f9f3a50f9e948622df45efe4423a894f1dda3fe6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ITS781901128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ffafc71597438a09d92615ab90bdb6f6fc4b407459dce712474e3beecb1922. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITS781901053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499e78c65bb4d97d44855c9dd66e211a13dad3011e3550ffa5d39f49d2a1767a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ITS781901054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4ea892f8e00c5963ccdd0a62bc7acf15a9998f6215cb0ef4ede46ef53148b6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITS781901055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6808521b909df7c8b33860e811b1600570f8e468b6860941ef60c0e0fe4e9913. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ITS781901056.
Call me in the Evening - Piano and Flute
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed374e73d848c1cd74f82cc8679b90a3c4171e1371e9cc572ac63070bb2a983. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITS781901057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc724a811694cfb9eb4a375ddf019cf66ee44d716c46b8ac9faa84bdbe2805a16. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ITS781901059.
Without You I'm Nothing - Piano and Flute
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39249891be57c5263595a1e936cfa1a15976a1dcd4b808701bd8afe666c1ea86. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITS781901060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb72d7dbb330943ecf44daf3c24dca22cf8af44ab0b32e940ed8d970cc3d1ce. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ITS782401701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf3cb8edc733e3f014ba0dad4b69a42d626e83b22ac0dfb4c565aa3e189fccb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITS782401702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa28a3c24c9c45fe64937e72e099f177307ad7c6ca52c26849486a681ad6366ac. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ITS782401705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e2c792f20f7abc96e806b31fa6dbcba4aaa247407de77e7200b699a93b3ed6. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ITS782401708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394b18bd1e9b6047601b30e6f981cee5facb86669e2695af44274bfef31d7fe9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ITS782401710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d3beb67d3589f56f40544b62c6d2de00ae81c3d08fb50acad8b2077ce7e92ff. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/ITS782401712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db8c1ac8c83e5934da40c77487998c5ca18e7d27422497f14ce810067746af7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITS781901127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4823b79fcac69be01cde25f9f3a50f9e948622df45efe4423a894f1dda3fe6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ITS781901128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5146d72fe1bd08b06df823ba844048677cf103c671664a6abb42ee37a44993f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ITS781901129.