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 0x720f5c18ad25c5e69bc9fe7f31d5792a9157010e6b5bb67f5a5774a574f91b8f. 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/dbfff07a-2a4a-4c36-a7e4-0553009e3cf0.json and https://artists.proofprofile.net/proofs/artist/dbfff07a-2a4a-4c36-a7e4-0553009e3cf0.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 0x5c47168bf874b2d14053cc1b672c1bbb71791ba8657f192641d7659e955072a6. 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/TCADG1788777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b7f7c311ca5103e11b9f29a7f3c1421163883fab24979b3724d07288986d6d. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCADG1788783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41d9f18b3e37dd5d08b207a0d3abc9ec0f94235c53b985cded910d5268156c35. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/TCADG1788794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b0a8ad131a450bf0f79600cf1f2c2aa2d481e3eb572e7232cf23a7eef5550f. 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/RUAGV2304137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9e8b91e5d867f14750b4dc5ea85df994380472d6492b85c7639045e4d560fc. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/TCADG1788840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443eaa2140376c23d35663f397ee13bf2ac343863543e0ac8509eda9d9b9cfb1. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/TCADG1788844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1200277b8d881ded69bc0ca80d55b10fd8d081f0a3870be778262c3c9bbfd1af. 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/TCADG1788867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ca3925d379eb6f1410f4e20fabfacc20a0822081e30ed56f7173c6edda26fd. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:47:34Z), 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/RUAGV2306184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd133cdf32d42ec2c216391918f52997b1fc3a58047480b4d9fe0213c7535589. Chain 2 (Bitcoin): anchored in block 957868 (2026-07-13T14:56:55Z), 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/AEA0Q1843477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91beea7264c5076f6163374638592a0966ac6442c7a921180b872214c71ba90c. Chain 2 (Bitcoin): anchored in block 958351 (2026-07-17T02:38:05Z), 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/AEA0Q1847341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ef8b47fcdb73f9bfc6f389610593e6455424a9b95e8c768d4395c8264a47c3. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/AEA0Q1861102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5424c53d0e5793db83930957717ffd68125f96e7e015b1a87abffbbdd98a5267. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/GBKPL1827708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe438301b2aa8a395dc80c7a8a97cab5042517b992125fde7cb099cf93aafa6. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GBKPL1827710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc06505f05d8ce701a4d3c76a66a9c5fb1efaa96e0a5e43ff765c1328e72b3d. 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/GBKPL1827711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103a1bf9109b12337089e2695444fa972d765d87394f7233a2052ec9ae11843a. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/GBKPL1827712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66a52c78b2e1e850a5c6c1db2f5606f87076050fe3a89aa2e725f55058bd884. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/GBKPL1827713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614c9daef98ead297ba4eda3579b9bb506f277eaa5dbb1edbbb49c7f51ba4c09. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/GBKPL1827719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24fb8448d7a1abbfd3c1bc0e5ba58053a1c237ebc8fdfd92c823e058595e7a27. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/GBKPL1827709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf231aa486d00cbd2774661a6a6b3fe6b472e5d926104b27a8612b8dd121b47d9. 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/GBKPL1827715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68b9812f7b9f3995b27460d2993e8854529ed222d3852ec6d3cd7c46921aca6. 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/GBKPL1827716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf838376f279e1d242e035239a6d7bae43b9fbbb828078fa96ae4416e35900394. 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/GBKPL1827721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994b1bd09d3a6d1fba49b5492d64717e2169b7b52af3e83f2d302379b84603eb. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/GBKPL1827720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e27be8b4af49216e2d8218c9c2129a17082126c31f7c3f5267579e43dd62adf. 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/GBKPL1827706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b0184eeba6af34de6ea162ce4d2538bf9dcb8461bbe3617638aaef1eaa2f7ad. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T23:00:48Z), 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/TCACX1782510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7ebfbcc02e091107cff7a3b9da5aac4e9cd9b884197beca7b64a508d6f05cb. 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/TCACX1782511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4fba6693142713573e39cb3312936e881d98e929950cc8296220306fb77c3f. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T15:03:29Z), 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/TCACX1782513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa578908d5bc923d12c4d197df86adca0aa8b045326cc039fbb3bdf25e9ac8d71. 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/TCACX1782514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf182c9583c946d6055e11cbb11f076d098eacc50bf5f019ac75436ebde655737. 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/QMBZ91903287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee648a4b7d792bbad7694f58a6570b78d2e333f3e7a83c745098c54c0fdff010. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QMFME1971284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e9bdd5776a65697a74fcc434d33d4ca7b3a4487821683c708559d7542959db. 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/RUUM72000846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fcc55ea331f5a0cae9a2fcded5adab1091fdc11c1db013324aeb59f283ec449. 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/RUUM72000847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d234f29c7708e4ef5cf807045b709b1ba58da78df913bcda2d297f26becbef1. 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/RUUM72000849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca77e1b4a14f3b77600b8e3c9a1fbe9a43d52b92d45d445788b9057f2ab3867. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:26:32Z), 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/RUUM72000622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf56842e43b514f39628ce939e01d202ecf15a9f8a54f8ce0b6dc6a300bc0f8. 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/RUUM72000852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe69e48512c8f9ff317ba8e57b7590f7a19049e7fcc960b79c91764e3aeabf16f. 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/RUUM72000854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef606496cbacb84c84de84e3ab9198d751506f9211a7f46d5618339d41059ea. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/RUUM72100117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a1fe27f3fa23ae8b2ca88ed7c5a3f8641fdefff88f9a8c37df7862cefa26f50. 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/RUUM72100119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53966b4112c8bac995ceecb64a88ca155ed61f6fb1763b279491608a27c5ee25. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:53:57Z), 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/RUUM72100122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf37d8e429007ec89924bd600947528dfdf4c3606cc6858011af15e829fa0ba5. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/RUUM72100123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1a530859506c85a7596debb33d3b1d73acd5177372886968ff8d6a2e9e6268. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/RUUM72100127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacbe2c9aba7463b8ea6f8b24bc759fd63ec52d847c52f490cf5e7448831d54e4. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:03:51Z), 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/RUUM72100129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x986742d4f7f7cc05176f2132a7844f910325ccda9c7b22c350fa7ac0014159f1. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T19:56:49Z), 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/RUUM72100913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf1785f7f9fdb57b19d65fbdcfd380bcc1a6a617b177eda299b54a89f9f079e. 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/RUUM72100919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3975fa1a4f896453694d9246a99988cd1924da70235607125c1eee00415a22. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/RUA1D2228182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85fc65edeb89926cd63c50e86b3b6cdce67dc22460fce87ec90e23e6ec332af3. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/RUA1D2259182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75879d036aa0b9aab84da423d6c7b1dec96ad9dd36d7d17c30c812d703e419d3. 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/RUA1D2289756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd160f3dcfc33d8f5f1bd40142fcffed7637abb89d9c7dacdc3f97dd6acb2ccd8. 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/RUA1D2289757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30adca4462c853b5efc95fe27814672c6d7515c77cc5ae2db5e27593fa85dc8a. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T15:01:56Z), 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/RUA1D2337882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe55ae5b5c710e5fb423c7f907707168a850434c3529239e7fc61676b0611f3. 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/DGA082355958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8f0f4b038d0bed7caef5a7cf109f2368d30160f8b6fe6f025dc5ab76270bed. 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/DGA082355961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb703f3e65265bcdac02491adaf592f5c81b17d8e7d2f8aab7de8d16b868e9df. 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/DGA082355962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed702bf2519120309a64d68dd2a44ccfc7622a075e602e57c26b5a0b90538f50. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:39:56Z), 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/DGA082355964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008ba2e92b44847861623e1117f5d713dec0f589533deebb068476c3af6f1c99. 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/DGA082355965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc01b0a6cc4d431906444ad9ea3a107f91e06f959cae7b9c087be8d3b018ed83. 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/FR2X42423198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f368025c2ed0bc437ce31b4986b7ff062606610ef567181bc0e6ae941221bf. 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/FR96X2434050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88fd58948871673f506143b94e706ab9aedddf2fd1bd8f88f2d8a421daaf6d28. 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/DGA0L2453181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585878f768f23e1fb9bf395a9352d02a8302166250884c8bd0ef377c6def2dff. 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/RUAGT2324886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293f0fb4fea0675c42e31635e2d5edfecf7bbccbc9754f6b41f861b68674cc89. 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/DGA0R2485621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585878f768f23e1fb9bf395a9352d02a8302166250884c8bd0ef377c6def2dff. 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/RUAGT2324886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293f0fb4fea0675c42e31635e2d5edfecf7bbccbc9754f6b41f861b68674cc89. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DGA0R2485621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ba164d76f501a62ba3ea96c4d11834bea8af9bfdcec759f8785342b06377ea. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/RUA1D2510195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5f64186cd181339b5de48b3c9ea041fab1186fe6d7363ce28eca1e5882d887. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/DGA0S2453791.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a28a7c4fc08ff051467aa1c037dd653be6f9cad6ce3ce2584aa1258ab89bcf. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/RUAGT2476314.