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 0xc9ab6db279e9171321c179f4dff6347310b160960f0b9d349ba25885154905be. 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/d6c8c04d-b56c-46b5-9c7f-22c6fe71ec90.json and https://artists.proofprofile.net/proofs/artist/d6c8c04d-b56c-46b5-9c7f-22c6fe71ec90.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 0xfed4668260eeebda276137cd317eb71402a509dd455a4fefe13d0f9e41f5ca9d. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:46:42Z), 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/TCJPX2329520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a248ea5ee69800cd6fe46fe07628929df4230a6d0ae048e68a4f41abd63fd6. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TCJPX2394994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31559de468ffdf7f00c14c56d5df73d81bb54f9c5a8191cfc95607e065010dde. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:32:57Z), 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/TCJPY2300553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4217b1421f52c51c0abff26031ed2489c2d1eea50e161108b124acbbd024c0. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:40:55Z), 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/TCJPY2332381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ed2e9c9a1dc2498ec11d95450e77e84c4e002910982d96d1c03690a8364673. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:33:09Z), 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/TCJPY2332641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2948e0a8ac0f21f559963f3d2389844dd9a15604a3e38e6653e4bae4c17f1a. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/TCJPY2354059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07f378d9b8ba964d12663e6d9f3a0b48e00c1e13503198b76444cb0e2ec3064. 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/TCJPY2360557.
レディキラーカクテル (▷ せーぶぽいんとバージョン)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9103e004f3ddac269596d681c15353a0c15f0e24695566013850c6d64dbe4aa1. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCJPY2372941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0507d2b46216e8aef5e563a86d8fa25a2b237b9244522d2d9a7b7c71dedcc747. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCJPA2435855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e0d5975f4604363cd8b2128cf11f21f8d36a49e23cda74043925720fdcc12e. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/TCJPA2455631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844ea8ab8c63907e20f17f7a5dd6fc9b2151e56e6aa7f67a8bb57fa31398245e. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCJPA2458565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8647b4f86fae4ba3c62ed15b5eb0370206b7f3a84186abe60eba66fb71f07547. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/TCJPA2474561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8335d4e5ddc3a6fa06cf93f4de41cbe4128d9e97a5f61c28e68c5ab3810b3bb9. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:19:48Z), 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/TCJPA2485914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb08d610ce8013e44052389701c39469648eeb1fad28e75f8a17477041b0f52. 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/TCJPB2400540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177478299a65fcb8f880e728dc98dd06d365443f2dc1848a509502a7f9df88ed. 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/TCJPB2405561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e7b452da68cf7702d89e9bc2527bee1d11db02925f6d4fd9b3bd0f2ece3367c. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/TCJPE2593502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6caa082fbe236062630b67b70f96288fdbffb7dfd94e6f7c476f3832381ab077. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCJPF2510582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0cbf041093a0b133e878bac47379c1ca752ea7fdb4ca11730b7c7847fd4e37a. 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/TCJPF2510608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8fdf31d5a20123eb8c6c1cd09546a0f0cd549e2245faec8f2c65f9cdbed471d. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCJPF2510619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ef7321527562ac12c3b8fc1e88c0e3fb69959ebdd98d53c50aa7b23ae236eec. 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/TCJPF2510622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5cbfc20ceff86a490e5e19062b42d97ad9e50936a585bb502858566b5bb6efc. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/TCJPF2510627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa182d55c2d16438588605521458b4e3b926d314d13e41813fd18a546cd599b34. 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/TCJPG2522989.
カリスマショーケース (▷ せーぶぽいんと ver.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4497d34637e0538fb458fdce6869adf93a7c7603e6d4ff1bec8e7a1a485c06a8. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QT66J2565282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d34a8ae9fd8ccb1d2af96f96b4cf648ce5d65cacc5e44cc3c4fad96dd05e3c. 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/QT66K2558170.