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 0x5f683596c2c2099e4747cd6ff4c4703ce707106df65f28f4ee4c32056a89ba02. 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/88fc4758-4946-4030-83f3-c5922f1e1fd5.json and https://artists.proofprofile.net/proofs/artist/88fc4758-4946-4030-83f3-c5922f1e1fd5.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 0x5369348680f1bd35eb4b6fc784438990680f9752d573b378756282bf839eb2c2. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/TCAHC2339405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9e292fe7cd3f911736c4f45cbeacf60d8f78878c494e508001ba039e5baaf5. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCAHC2339304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64159ae8bdc2a29eff7585229c1ac4121795916f107be3d1f6a5ee20d2534650. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/TCAHC2339327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85cb9bd6f5b748f9db8f35cd5a9f7e7c84f0be568cee03fbd38945e2d985617e. 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/TCAHC2339484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af4ca6d5f71a48b67d97658964ce8d356db4d32c89612ef354afd7ece0d4836. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/TCAHC2339288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb759bea2dd023f831f4cfadef54f1f4727e47ffc2db3d651e6502d1a70eb299. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/TCAHC2339359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92842b30428092620e45e3ddaed3c00dd4d603a10678c716cf4d6f7078c8b1d. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/TCAHC2339397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524a522de7deec0787333f60f551e08265eeddd06ab537d5224dbb1eb7c1e9ff. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/TCAHC2339368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc89795940ab963d50518d44f7108158a9920ba225c733bb5f244c74e9506912. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/TCAHC2339401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee8b6db9cc61be11823c5050d591980b0c84d4533bcccbaebf4de5d9a93764f. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/TCAHC2339374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04d0ccdf3ec5d81ec1c957ba80cfffc2784e90d6d6ced2d0c842dbead9eb9cc. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/TCAHC2339377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba84ddecad6066a16dd3be7ae33709ce3b161d7a0445d40ef78ab13b7c99dec8. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/TCAHC2339278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade5fe493caa6429c0741e656951095f6ee5f724f18d569a6786292e9fdf1b0d. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/TCAHC2339487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79368a24de96b9b38e744fb7e22086c7c3dc1b6a39308b34aa052688dee81bdb. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/TCAHC2362093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc11a52adcd1ba193f3a861aacc7ceebb278d326219954844573d06e6832e73f. 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/TCAHC2362024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb12663651eeb9f9d5e91108799156d971a52d7a7302c7bfce5be4ec9e28d35e. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/TCAHC2362064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd9e95129dc83f328290aa41b192ad0a030b612823111657e97ace33b096ef0. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCAHD2360620.
Melancholic Delusions: A Silent Hill 2 Inspired Album
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76037721032a94024bec204f0d3d6f33769cf63227ec17e8b3eed225720b286. 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/TCAHF2365086.
Halo of the Sun: A Silent Hill 3 Inspired Album
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5003b887c558c599b71aeec201e3fd1bcafb5ef36b88eb068a128d30420a79f. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/TCAHJ2362364.
Wandering Ghost: A Silent Hill Inspired Album
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5f009ab813d8592e31b8743d4a2a1c74506ea34b12ba67d85b863d93575f94. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/TCAHN2385195.
Reflections from the Past: A Silent Hill Inspired Album
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea626b2cc8a4a5bfacb7189be24edd211d4cda233d848f0910682d2767f46b0. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/TCAIG2462389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb15fbff64d8c94bc53adab678c94985e1593d67ed18fee3d1b7c59d8fd59d09. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/TCAJM2530560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d24d85a8050b6318d1260c0548ec503094119f8b9d4f3106b1dcd6f1ab40a24. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/TCAJM2530575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11953b7f9460be946809f494f138916e71b9ffdd41a7f44a1734a3119d7d95e5. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/TCAJN2530578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24888481ca1e80b692186b6d38c8c1e285f823065893f0a6795e9287783bccd. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/TCAJM2530591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1737de438ff657f5d926915614e402f01b5c6abf1708803d07961cd27064ee04. 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/TCAJM2530594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e33f70677f71cfe391782504c88baa727615a7af6272f671e9610f4bf72be8d. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/TCAJM2530597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d00620774a496945c2388b89ef99e2fb7e928c83a77ef51ff1aa09093758ed. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/TCAJM2530614.