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 0x8a4b7c35a0b69cb8e20e1d4664f483c04c6471ad8d3b8f41c17aad034905e6da. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bbb48554-5cf0-4426-897d-e5c1eb7cada7.json and https://artists.proofprofile.net/proofs/artist/bbb48554-5cf0-4426-897d-e5c1eb7cada7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Heaven's Gate: The Rainbow After the Storm
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 0x8e3285e46c95839e2c6d417b69e60ec632414339eed22b00621828ab9e32a8a8. 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/ESA092204348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3056d52d9ac6d4675e78567f569e99012d855131d28b6271992ef7afcf28d65. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ESA092207758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1af636078fe4c2ec55f9fbed4e8b130d9b832075d0b385bd08f64f6faeaa2b0. 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/ESA092210299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d8fa45fda1711ca33698230773d05e0fc55d275943338e68bba466ab150b731. 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/ESA092231033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45aebba34ea0869c5213c0e3e3aae0e234c6cb3d7178d3556d6dc31bb64b55c1. 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/ESA092235481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d82ef2248c64e0a1b655be802177829183ff627d9e5835a5553bc1df4f7132. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZHNC2345696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d8e7032758215d174f6a0739ef42b6d9469a6b6e969c576de217e24c03afb80. 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/QZMEP2347930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd0da685aef8c169e88253e0e4b2a304b1d5063b121d62a2b224a62f932f95c9. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:10:50Z), 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/QZNWX2564915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab95652469d3f072e8da8f8032489f65fb4f596bdf507b4c6d791394b84d81c. 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/QZNWX2564916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1727063b476a7c82b89c67d856ad2dbca19c28e3ca6a4473ab92f8a38a9aec16. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T08:23:09Z), 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/QZNWX2564918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ffd838d92e54af75f43cfc91e66393993d933713474f211a65f979fd654755. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:52:18Z), 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/QZNWX2564919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c078e1055493265c12869606da53b6191912de4ba4007a58f90a1416d369766. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T02:17:57Z), 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/QZNWX2564920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362b3e6db2dbca653144a33a81271cb77723093df3dee3e96ae40ee4bc4ee4a5. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZNWX2564921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cbfa78720a1fc1de7dfff6f6cea251ba4105f69dbd98433bd5908c0880f9f44. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QZTB32501093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf2dd23d85de896cc9a805a9b2da5559bc13f825f0ac97f223b28c7ea34d80b3. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZTBA2515146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a352ca7feecc4ee55cdff7e4c3336e09145fd8bd0f7c2e23f0ec6c58ed5625e. 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/QZK6H2309298.