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 0x765c9fb5a8a8738565c8e0654913d5c8682055c81b77db681adc16cd7d6d6b58. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/63d9ba79-c92a-4c29-b188-c05b0303c85d.json and https://artists.proofprofile.net/proofs/artist/63d9ba79-c92a-4c29-b188-c05b0303c85d.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 0x84a22d019e201c7f42bf7998096d0e51ab7d83f35ae364598f631d923d95ccd7. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/JPVI02001558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d9cdc2ab6d4436c3dec0fc7a7ce4d472cda5baac9b896ce66e4edd3cbad4c6. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPVI02001016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4497b3b1360bbf2688678feb543485f25d4b0943cb50109685a8ac61e5520d42. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/JPVI02001015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61fe4bc5d37d6566d384e57dd92200b979375a2faf49997e462bcf720f723f22. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/JPVI02001018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b7f45d5a6f91dad25e72ae112f61b285942a1b0e2c46529bdc326ae0cb650e2. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPVI02001808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12700768ef9ff28978f6f04c3dc038a784833c1602fda262dc7b4992fd46af69. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/JPVI02001802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x985cb7fb03aeb023f3a22121c1e36bab6d651e559b1695bda2dee3419c5bc522. 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/JPVI02001804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3e199e1614a08a425955b90efbe140c194b56bf73ac4c31c2025d6e9b86503. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:03:30Z), 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/JPVI02001806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb84ce4cf1cb41365f201811a8bb0fa336ce01ba3baf919db3fa1002901d1f84. 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/JPVI02001807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8fb3805311b25d5ac04829f805f99a63da907cb79d8aa8c405af2023eff0727. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:49:11Z), 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/JPVI02001805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x985cb7fb03aeb023f3a22121c1e36bab6d651e559b1695bda2dee3419c5bc522. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T03:46:44Z), 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/JPVI02001804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bde3ff9bc3d08074782500331bfaf48b1e5345fff96dc16b6de546a9255ee5c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPVI02101235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2df30a094ee809fa89571a73fea4f18bbc354827f6f7bf97d0afd8751897ff. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/JPVI02102014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe13930b1364cde00bbc19d6c613b8d8d44a71d91a0a97b0584be5fdf68a632. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/JPVI02100796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf234be96a8ae6f9fb5049bf58a2110e5f4398ff94d8ead262f3c6173d88a2938. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:11:53Z), 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/JPVI02101750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7b8a2c1591d4fab6389c692dfbaa47b1ece1ec61c09c5ae766d3535422619f. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/JPVI02203438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1e93fda8dcad975f0181b783a53dbcb491b9853beff95a243596c95e5604e4. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:43:24Z), 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/JPVI02204080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7b8a2c1591d4fab6389c692dfbaa47b1ece1ec61c09c5ae766d3535422619f. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/JPVI02203438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d64175dae2ffc1d2aa76a50f1655dfa6f883f6b0ef335709f21fd6de69f447. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/JPVI02202132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ecac86c447ba6e960aa6df9bba57e6bda88248d6fc4910e4391ce933b2f2b06. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPVI02103437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ace0ed25d07d394fdba84ea94e8eb452ab2d147ccc56cfa56c0e820409e3ca. 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/JPVI02204081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37c1c8cec265b8b19281103797640fe65f9476eaeaf0e6082d55385082d9a21. 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/JPVI02303851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc07737f616de87298a134e3687eeee13b3afffe1efa41ebb7e6396927c49a8ee. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/JPVI02301612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9709ff1d48065baa4f95710b604631a5a9e64457fd47e0b59145c62f89d8f249. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/JPVI02305287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb083ddc655bbb1723bc6b705d2829bd33770743c3882f5918276e3c16984d37. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/JPVI02305289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a28f888048fd98b023698bdf50224b2df4865bf63acb86e288fd9553d7b00ff. 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/JPVI02403523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a28f888048fd98b023698bdf50224b2df4865bf63acb86e288fd9553d7b00ff. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPVI02403523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3360d9f518ee3bf311ffb05aa16e23aa838f93f696628afe2fd7991efb07f4b0. 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/JPVI02402730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8337342adf5d303400fdd9c8944d9362a68cf69cdfb0c4bf8f666760cd4744d. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/JPVI02403884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6729d0b20018904b166dca60d59940dfeeed833a4de0c055e18ac787a74fd449. 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/JPVI02401893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6ae4fc19d756a433cd1f9b74664800c8ef6b12d85d153ee2f1b4dd88b71c22. 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/JPVI02403885.