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 0xbb1049ea9ca0bca39403f3bd1f7fa1ce5c34df1b4761f9feec97540c8f0ba7b6. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a391d819-96f6-40a5-a8ad-ba133cbd09d3.json and https://artists.proofprofile.net/proofs/artist/a391d819-96f6-40a5-a8ad-ba133cbd09d3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Ties That Bind (Leon) - Remastered 2021
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 0xebd1a46b70c38a680930127094fcf985cc10ec975e33f48f311a2cfdfd9889a9. 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/JPE102103080.
長い逃走の果てに/At the End of a Long Escape - Remastered 2021
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1534155910897a69b30dd099463c90b05256573dc8e176d5e3a4a29964670b8. 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/JPE102103230.
Heat on Beat 2012/The Mercenaries - Remastered 2021
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536127b9fa45d9b9ad2c182812f4b57441893dbc4721bfc76fa542497372c5d2. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPE102103300.
Go Tell Aunt Rhody -Resident Evil- - Short Version Remastered 2021
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79e3678b539c6b41a502957dafa8597c49e5c743476bdb7c8a9c080a379c0ca. 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/JPE102103310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfadc774589c9c8de00d4b668eccc07a26f3081c9ba159c68d87f6902bc6de7c7. 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/JPE101214610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4767a82cc3eabaed4580129dadfed21dee30f276a67830d512be18a66b6504e3. 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/JPE101215110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5073094a7a28b3b2c091ad223b8b16e3f837130241637ebba559f7876c318e55. 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/JPE101214620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8743bbe480079b9fb929136512331ad93de3f07a4bf38f87f86cc53832b78722. 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/JPE101215150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4500ee78e0a8685253591eff274920e736df95d159f3cb1275c263bc1b0a5a. 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/JPE101214690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41293363264928eb65b44e31528886167d0445d9382662ab97aeb1b2ac3b8c67. 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/JPE101214700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838b80f8672a098579b8bf64d5ff6ee939251f1231edd14fe69fb6c54442c292. 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/JPE101214760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d1d7a87474dc28f45ffda4cf66172fe7f61f2429adf951f89b36d4783db732. 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/JPE101214780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7013b681c5ff3e746f74040d4884c64fd235785932da984ee42fddb3ccfa79b. 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/JPE101214810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb51afbdc9188200384d4002ccd711fb65bab03fd435433bdd9626406a94dc8b. 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/JPE101214840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a93cd6f580b0fb5397b7d8f34d7b10a8c3347e4629c133988594c607b57167. 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/JPE101214850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42fc7b1561a82f79f186b689e0255502a4bd9d65e9f18083b00cd12a2b237bb. 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/JPE101214870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c4827db27df75e86d90b88e4763e17bf560f3a9f3f56b06deba617f703ccbd. 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/JPE101214880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd670867ebb4bd6142d13a336ab3a8da264e176cfa3b01184b6c5041dff0daa. 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/JPE101214960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9139eecda0aebf4caec6aee1550511d50715a1a05466081a2804c80cb5b2cf1. 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/JPE101215030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78254adf749f1990f81f9ef2f1d596e4b8c04d5e5c7cc8711ae05a7e7f587924. 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/JPE101215040.