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 0xc11353214b6c915697cdce8c395b1f66a2884739f1e5cb73edbf100d7ae70c45. 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/fdf88460-5e0b-424a-9d87-898dece58d42.json and https://artists.proofprofile.net/proofs/artist/fdf88460-5e0b-424a-9d87-898dece58d42.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 0xec0fdc61a9666b1c195ac2ebfaef50dccad9068dd5581d21690760dbbfe366a3. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/JPI541500015.
idler stella feat.nera_K,ぼくのりりっくのぼうよみ,野崎りこん
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e880d56b8ca3f1121176f5edb9dc97256684452d4f9a279f8c7babce5cf6278. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:42:56Z), 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/JPI541500020.
オルタネートエラー feat.トップハムハット狂
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f0696fc28106934e56f73625becc5704a92aa02426a663ed54ec86eb6a0792. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:02:51Z), 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/JPI541500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f44db7be4e6d7968e8bf823309c362ec0ec10aaf0a232a6bfdacf95ad2dd382. 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/JPI541500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2066e6d443313fcfeb9484543e7068f5d1dc9b7568fe0b2b6199bebc9e868eb0. 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/JPI541600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc33af6b4760a9d976efa9a3d0542ff008beca249656fda6cd1a2aa7e9435fe3. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:09:58Z), 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/JPI541600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf615c2443654c7df7e50d360bcf3da8ad1773aeac92906546c3b99c5afb9a62. 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/JPI541600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab850336bff6698b18d064dfac7023ed2a65b519f2c6a4423f72ce48bc90ccd. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:17:36Z), 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/JPI541600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26758c4a1fca22839fa3b136ca1a1122880e86c25f586e342ce0a9b812c95dc. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPU901702040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3427a7d2ce276aa236a6e849e150939e78068530d700e94b2b9e37ab3bff16. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/JPU901702750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374f20bbd37c94bf43ef899c380cc9447778cd7aba50054286b4158c30cb681b. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/JPU901702758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x973c3b8df9de2abb449a2c3a0dabb8e3b8194d31eb02b23c8433d3133a4d8e45. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/JPU901801757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c414872a7ee171bf2ca8987f55d47267fe137850e62486b3c3aa6ba5c665ab1. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:29:24Z), 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/JPU901802287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd35a3d5d89ab3ba0466a51793dd9a725f35eba134db2a617788f99f17b2db0. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T16:19:54Z), 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/JPU901803445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58f64ce6184e65e89c425e146f8fe0add64856175a74c4b44b8fd5a3ef31f98. 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/JPU901803646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211dff37c85405cd035c5fd72ff06409d7dc06a60e7c05a8e394b5cd5c28ce27. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-20T12:10:09Z), 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/JPU901803900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadbe23b1154367d7d470bcd60d4828392ea9b0cd6c139cc11f7b0781a1c6a27e. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/JPU901900608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe349eaccb62e1d8c82199559ea732cc205ef62b02554356264dbe000e73f2b. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/TCJPX2328018.