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 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 0x27fd866f53a6ffde4ea1f56eb8ffd3969a8fbaf72ea5e649f3650c42415fe2b5. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dafeeced-4acb-4f12-8de1-a49ec9565995.json and https://artists.proofprofile.net/proofs/artist/dafeeced-4acb-4f12-8de1-a49ec9565995.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 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 0x87e952ee48f8cb3b28b0eb280794a9f0b3711c7051a4193a42610ce2cab08512. 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/USUM71507013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f46de7283ad983cace4cc887c9198c171441d52c3eb9f8cc3ed5dc571c8c460. 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/USUM71507030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b1e6d2fc573d305d8fbcf73057131e69d7185b723e5a1c0c65e052ba432852. 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/USUM71507040.
A Way To Say Goodbye - Ricky Mears Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0872c702bcce1b15bc910c149d476b645b950fedb050fd481abd2cc482e3bd. 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/USUM71507042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49223060aa638aea2fae5bc8d6997d714051d7f9eb109abe9ec553b9d502fce1. 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/USUM71507043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe195a3b9e20918cccfd1223cd68ad38568211e3a323d9a79c5baaa3aca34c1c8. 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/USUM71507044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff1fc499ae46539bc5a3e0595fbdcbfa11e52281e515e123e65f53bd059169e. 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/USA2P1907193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970dfa075f096251b424b67a500fd022d458ac930e505ba592ebb372e919c804. 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/USA2P1907195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554240ca67b3c45ea1616c0d599bea0feaecef21770ed26f74eec0587a8c5a1f. 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/USA2P1907196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40008d83e9949c241c1270ba566cd60a88750c5926c543b3be95b9e5341e8df0. 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/USA2P1907197.
The Bloom Series Vol. 3: Ways of the Sacred Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702387c929df49a1bbf7b97c6dfb5ab9f0eb67708fcc311a12ddcada12830033. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USBEB1310150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02acea90fcd795412d8747de6fadf1fa8224155023e89c998fa992b0270dbc15. 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/USQY51332079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcab0494d4558ab6d9a3f473c74656727eb6a561397defeba1d1eb257322a11a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USQY51332080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85653629560261170b5b3443f17898723cdf83c7267b5119c062c6fe76b1298b. 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/USQY51332081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f42ff64d6d60a89209f2a097eb728d21ea5894c3663411bb3dd4b08f9db279. 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/USQY51332082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3eafce8264966ecbfb42654afa8f8b3b13f51ec81876c4c05246cbdca1e0277. 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/USQY51332084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9631f92bf6987a6820935b3c7fc79bf8e41248e32445e9a00cf1519500140735. 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/USQY51332085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f0bd7a275bdff662762e2eb988ab1b2b6a7bde94dee10ef92d3c8ec05f9597. 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/USQY51332087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca8fd702a1fbd1823e417a0707010bc8f38548971de99fa761fb75c47010dbb. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/USQY51332095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8533068293ae61536ffd0a3d3f1b24fb91855076dd005f5959b23232fdc1832a. 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/DKZVA1661048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff82db369dcea399acf27a005a8ba0d810bc0b831be8ba16aaf764ebcde27e7a. 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/DKZVA1661049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ac13f8ea77ed79351875fd9317a7cf171f793a764459f5bd36017ffd3b641c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DKZVA1661050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fdc8f7955b489efca978691144f2d859a983886acf4d72ac8e3bfaecb864fbe. 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/DKZVA1661051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aed7fb08bbc2c4bb2be2ea4befd9f1c34fd03d76cdc4e9ca12956ce04b2fa05. 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/DKZVA1661053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc2b671fee1bc782943446545859565ec864cb162aa2583363b74f84c36f02c. 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/DKZVA1661055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d5403b300a7e4a78c910b25242e35d8e73e43e93407e13e83adaa5c2e55cfc. 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/DKZVA1661056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbdcd98a38ab20fe07e0f31807e518fc30ac9e30dcc11309d0097dd6010d4a47. 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/DKZVA1661057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b66856329d22f3d5cfba3b3e2d2ccc156cc349d8850d83236279e5ea5e6ed17. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:27:20Z), 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/DKZVA1661058.
Morning Bird Songs, Melodies in the Forest
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc733c8eb82165a9ab809ffbc4c6f0544af3e6d3fbc78426d6cd2c1ad4b1893b. 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/USA2P1615054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61301e30eec3ef5aff6a8cbc88f8abcfabb43e79794ad9754d03ce39498cfcd2. 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/USA2P1615055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ad26c0b3754c7d71e5b11903f06bca01cc2589c5f07db0d62ad21d71781919. 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/USA2P1359843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca482c8dd770306325de2a89c24d49ac2eaf31756d5cdba0fe60a6ffdf7716c4. 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/USA2P1359848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543cfafddb94740f98fe357cf93965e1905b2f860ae04b84de5c37206c20a240. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/USA2P1359852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x754ea676df706ce15fd16f8bfae51d254b4ebf98a193257765c8019cfa33d756. 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/QZ5FN2259517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d8779a5b69c4234ab64c42d1f6c2f271f0f87c52ce92bbaa57ed3d89bfff33. 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/QZWDD2246819.