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 0xc4e2256ddd7dca9a25af128c4720e47cd0db3e738ee45dc1d604e95327b431e9. 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/9fdd0560-1d51-40e2-bdf3-7bff1a34fd76.json and https://artists.proofprofile.net/proofs/artist/9fdd0560-1d51-40e2-bdf3-7bff1a34fd76.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 0x331b8203350cb93632e5beb41c8d044c60b7ccf9682f569f0843e39cdabb07a6. 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/QZZ7K2468583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d379586278b322616b1d84661e95e95bc60ea4c8ba27eaef6ef58de5ff06d7c. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZZ7P2434954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe048a0cef25a1f2df3bc2aba09a207a44d618fa4c3e3e1d74a566416a523db3e. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QT3F22475720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb33eafcda81ada560c8c3a566137bc1231dd3793c53ded876792c01fb1b1c9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:11:37Z), 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/QZES72599358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0faa0831bdd00528f9a6d9f04663e74cafca54cc38761a291004fdce0ee32884. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZES72599359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3e5c39077f43490f17005f7fd013fa1e155ac807a9be2a770d99cd609e4a67. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZHN32555036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28dbdb18cb3145f5a8c5d127ddf46e51106735520d3f87586ea068bf84c79d59. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZHN42542729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204cbefd3c638d71a2281cdf75997f67d6ad70fc497b309b7c8fa401a831c809. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZHNC2546169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3aba8398ce54ff6078d72c52276e5ffbe0bb9d9050e7ce804d0a5394ec80c3. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:36:59Z), 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/QZK6G2508197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a537c2e6a36d81da42255160fe297166f9d02d30bb66d17ea3fef27314b00f. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:39:10Z), 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/QZNWR2593916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b088c42e0439545bb8feda03552a254bc205ce75a30f3a10510fedab62938c0. 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/QZNWR2593917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e0d30c850c3560ff17fc98ed02eaf8197e85e9a1489042f862614d6edf76f09. 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/QZNWR2593918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7a01e1d92a12c1387754bb18a8a6d220fe71ff2722741ba62c3f8f85d8f617. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZNWR2593920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2cabf5881070bdf481c40ec4cf96398f74e3a89e642b948e1307abd3ba7a50. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:48:52Z), 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/QZRP42502775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2eac4fc441f34d2d4027af1d89c0408bce1b8284aa5ba2883527b934e07fb37. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZRP52501574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66eb3e29c61915988a75cf2a2df0b7d18d1adb1d78ea79fc5033903fc7beaaa2. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T19:58:34Z), 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/QZTAS2526124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2eac4fc441f34d2d4027af1d89c0408bce1b8284aa5ba2883527b934e07fb37. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZRP52501574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b1ee62c7486047d240159def0960102b521fe021515d9e22310450a7f344e0f. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZTAS2526125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778da684ff0862b74999b803e3fa4270aa8a5cc5c9d1fff63fa622592ac84b89. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:29:44Z), 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/QZTAS2526129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d9969f8b14fb2eb64b5e110594dbd006539c64f46daaa19326ad8de8a93d22. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZTAS2526131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7fd08e558ce16164f22fce15d541bf04d61e43cc45bafbb93e480bda5ffa89b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZZ762515676.
don't call it off too soon (peachy & ringbo's rmx)