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 0x5649c5d0a1c41675443e6bccfdb5f3505685d537038283bdce4a7a6d02548d65. Chain 2 (Bitcoin): anchored in block 953610 (2026-06-14T07:58:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/13430629-493a-460a-9eac-c8f98fcfecce.json and https://artists.proofprofile.net/proofs/artist/13430629-493a-460a-9eac-c8f98fcfecce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Anime Love and Romance Inspired Works of Art
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 0x439aef3771cc4a9eed733893eed0376724f01b73d9601a49c73fa3f796ffc2dd. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/QZP7F2545292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ce49f66cc9ef2d3de4f601cfe4604b27714311b83536702d9636e95ca42e45. 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/QZP7F2545293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d5cd78f6e22cb3c80355cb8ce4985787b02cbcca371220d3dc24457db547c1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZP7F2545294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ceec8a03f69e2bf0c3b7bdbfb064647e9f29dfe14f2363d7e181c4b864011f. 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/QZP7F2545296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c9f3a9c8b2c387eb678d8035650a9da1d2c60ac37e9481dcf3ed830c41e3b51. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZP7F2545297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d98839a83ed34226dd05b4dc788b16200421c49c52ce1865d9756d3f1d72c0. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:29:32Z), 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/QZP7F2545298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e7f0e3d8de85609d43881ef61a6452adb84a92a067d66cffd0d0831b7c43f1. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZP7F2545299.
The Secret Music of the Hidden Waterfall
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f53cf3821354c52dab7b29fadb77c961068197835dde10336eef602e6e7141. 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/QZP7F2545300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08272af8ab960b94535079042e83e6cc2ca3bf5e45736a6f6da78184d65dcb57. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/QZP7F2545301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e7382100f183d4fcb99e0c50467cc927e8fad3438341ef837bbccf35fb475a. 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/QZP7F2545302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976ff08230ecc25642628acc27ddaf352273614998165b9e5bfdb2a5e982b646. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T06:49:37Z), 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/QZP7F2545303.