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 0x96fae07e5c5e055acb81f00d4d0b9bd0cf12c3c5cb3dac7213179bbe91d75291. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5a359cbb-c95e-476f-a2db-d4ece939efe4.json and https://artists.proofprofile.net/proofs/artist/5a359cbb-c95e-476f-a2db-d4ece939efe4.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 0x24b2014d6ba2d442e7e9569be1a8ca7074364f1162aafac0a760cd4fd8fe1d4d. 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/DEH742203870.
Sonus - Lusine Remix - Mixed - March 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c9debb9d2fc11bdd433e22d4fb99e3b57023f8cc552d2bcd5567041205a701. 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/DEBE72400301.
Arrested On Vacation - Mixed - March 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d99fc3c4df98cc58949e749f1999f977a5639cbfd41ef65d51186a768c06962. 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/DEBE72400306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69449ff769b3269720685974e2b45b64dd2139749b9a985a34732cffb5fd6178. 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/DEBE72400308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7f3d967b360e8f6bed0070c1ac4856e393219f4476d5c9825a1db7627b04e0. 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/GBKQU2467254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5cec9587fdf535792993550d9103eec2e825fc418cde18f102fe439687012f. 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/DETB32400482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5cec9587fdf535792993550d9103eec2e825fc418cde18f102fe439687012f. 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/DETB32400482.
Devious Fragments (Last Men On Earth Rework)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39809c09a9cd2420e42614c7bc9013b8a1176f7e4ba0ebe41e94fe460c7287a7. 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/DEY472472549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb3ca49a597884e2134b9d71e5dbf2422f1338b4abef79f1e3c9ddc6261fdbb. 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/DEBE72400230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4854dd987e4167102a78b254de02185b6c505503c46cc41aedbc4f6768cf5968. 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/DEBE72400232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01efc833b04dabe5de5b61179df8f6cf9bcab884aef63ce98d06bbe8c430f1f6. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEBE72400436.
It's Alright (feat. Malou) - Mixed - June 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08055610028cffdeee6a77dfc6b5aaaddfe856db97c640d32d87093df7d2f941. 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/DEBE72400437.
We Are Not Who We Are - Dub Vocal - Mixed - June 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95151bf0668723733572d3bb8becad55896940261216288911c62445a6df134a. 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/DEBE72400438.
Cold Shoulder - Helsloot Remix - Mixed - June 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f424b3450260ff30784512fe9e7f0a06a22ae1a4aeeeb6cafc9bd55e9951e7e. 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/DEBE72400439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58fe061a670ac8c961734ec9dbed1ddf737bafb6e2cc1e141cf16445a17207f4. 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/DEBE72400440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe130f8fcbb0bfd610acaad97313893b78e8b7518d42c06d8dc2219e41de0d10. 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/DEBE72400441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb266f33bff6d675eb5fc7b14e8c81c080962bc2abd59c5e8686c3418a6d151c. 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/DEBE72400443.
Ember - Helsloot Remix - Mixed - June 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85d2e16c81cd47db4363e245af7c31bbf20d9ae62282c688cd703e38c9aeda4. 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/DEBE72400444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811bbb590d6f6af53bffbc4eb2e6f03d501066c4ea6ed9a11440196b55306e61. 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/DEBE72400445.
We Get High - Helsloot Remix - Mixed - June 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d9ae0941421e968a6c73928705549ed0f9845b0c35898e4610d712859e83045. 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/DEBE72400446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7f3d967b360e8f6bed0070c1ac4856e393219f4476d5c9825a1db7627b04e0. 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/GBKQU2467254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5696294942f9d08b66ced5e87f57d13ec25b63b499d1bd2347690135387fba4. 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/GBKQU2466710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4e12e5d303d80faf1a89bd35dee926a5a14f1be065d5608c54cfe350e28a2b. 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/GBKQU2466711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f1767fc4cba8f867367b5b31955f04cb663dd58e2c6d52a9eb831e12babc8e. 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/CH6542304687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08cbeee8276f38ef73755b8daa9688603b153a71cd220630453df24a65435b6f. 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/DEEC33500511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec72a09c8dc4b96b67c1609a3f18355cbec9443b3d42292d4204bf587c10ccbc. 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/DEEC33500512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28bc73df8e1c339c319bfb03313f824a5d586a83e3f3734989bb78a6fc3e313a. 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/DEEC33500513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb918ce9922b367d9c254ed679371af2c556c4da64cb507e85bdcde7123604800. 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/DEY472085677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d8c1ebe809c19288539872a26fde75a4f7921102befd6910b08dd088718ff9. 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/DEY472085678.
Tangler Twisted Twirler - Kotelett Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460b9e155f8b388a86bdf4240b4483be0d527456d686ee2f53d43a244778a368. 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/DEY472085679.