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 0x5a7e29d09c0fe0162ae932680e8149f3732ea584c6c3244166871beb5e7fb564. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c08221d0-2265-4ccd-a2cc-44d4b2a337aa.json and https://artists.proofprofile.net/proofs/artist/c08221d0-2265-4ccd-a2cc-44d4b2a337aa.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 0x0ff23600840e6a8678d3291aca85436d518082fa4bac47a6cf079c81b7fb9bb4. 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/DESY21400674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc448e49657aa11df40aa9652e507319062e2fab5d649773dd5346688a86c0857. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/DESY21400679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa688ce118bc716dd635930a86012f4491ca4d6af150077b9a2fb5ee5a337e1c2. 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/DESY21400676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc36ce6fa36e9428069be64c3833297f187d4981093e4b49cae244dc49bfeed. 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/DESY21400909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d4388be17096238ebcf36d391b8f66be997dd6cfaf4f6761ffbf4a3efb5621. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/DESY21400911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d9f724bdb4230c8eac0d178615c95536c462edca51919ee70ffe476a9f92824. 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/DESY21400910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a5c818139b1ecd29b6fdc88e743b6dd85b5e3681b758c1b28bdade8e7a9857. 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/DESY21400914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0a770702572810ac32989cea83244668bb83740fb1f675f9cc5753501b255e. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/DESY21400917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50472dda370f21b51a3c000d9f7481c65bcec41710f30e31a672465e7b65b956. 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/DESY21400918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915b5782030c306ad0bbeb0df0b3098aa9368a978467e955234a1b84e62ddfce. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/DESY21400919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x213554ddb1a9ab9fa15c1ce4ddadf910d724cca5e9551f27f9cd3259ac473590. 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/DESY21401057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f614a616c39b03f6eab955f3532b6e46c128129c95194fdfe1694bee2161f00. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DESY21401060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac4905c3321fda8ca4639851a9a9d78ad8e361352ede958bbdbc8f47ede4671. 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/IL6192101670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409d4081d6b0105cefd2c53e1e360db7269edc9125218731d80084f8549af6e0. 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/IL6192202195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac4905c3321fda8ca4639851a9a9d78ad8e361352ede958bbdbc8f47ede4671. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/IL6192101670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6e06a5cf950893c67f98272cb85dc13069dec4bb85962f515a17218c19b442a. 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/IL6192202524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409d4081d6b0105cefd2c53e1e360db7269edc9125218731d80084f8549af6e0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/IL6192202195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf1e0c1a3bfb24b0048154165627c38b8b0a60cb0594b25ae97d36a0b4ff941c. 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/IL6192100630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e38a32470ed15bc2b39944396a7542df10b6f03670ebbeae8efec704175a05a. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:32:50Z), 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/IL1042302541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa715cb04a0f92cabc489c048c187891eb2ec002c6de99fedee447d2796b4aa4c. 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/IL1042400401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bde4a9447d835cee5ca2cce7534666e814374d2d1d8b1cd596ad04725aee139. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/IL1042400403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e38a32470ed15bc2b39944396a7542df10b6f03670ebbeae8efec704175a05a. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/IL1042302541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f697773518a6b935682b95d9cef3edc28764ccdca3fda83302b5c0e3495f83. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/IL1042400405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x173f6b13ff8a8a5c7a050aadca72e0e2f50abded50fd2168d330d2299287a343. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:29:19Z), 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/IL1042303401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a1010773951e2a43645e42bd6b4d0d0a1850dfe7794c9daeac7a7c3fbae4194. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:16:21Z), 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/IL1042400407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd41d31adb74d4ca541e3c5a2a0d5c9d7076abb2dcfd0d6a3c6d2d8d5366f69b. 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/IL1042305501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e1ae34c82cc99b271dbf3633142ba47aaa101a14458394d021fa7154100e697. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/IL1042400411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d713679a6f3a4ac13d7b47588a6e158991c4b078550170ab4f23dfb4d3ca6ec. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/IL1042404841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db78f0e16cff3053da978ea2b18fc4d11a2d273f8406220e92de01f953550eb. 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/TCJPC2406467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37bcb5d60f09eab2864200f235977405e6c1435c8f1b5050ace634e1301bb613. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/IL1012502204.
One Way (feat. J.Lamotta) (GA25 Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252edbcfbf9371476c3266cf27205253404b5d55b3ab03cdfa8678712dfa7388. 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/GB5KW2202517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c911491d3515fe64d5d1442e6a2d44b0aa45e827b5a8de4f19d55a3e422d11. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/IL5842340907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x893f06023f3fade78621af80e44ddb558dc3b7a9cb2b81af12734641f190f94d. 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/JPWP02100267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f23fa5e9469becd5e81a1115954ec1c316a0e18cdd61ee045c3aff11648e65. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DESY21400861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41114b2287e5828538ed7eb9ad781bc8af7d7fbaf81020dbe5ec8f2a7da0a76d. 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/DESY21401151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf306133f52d619baa2561c67e510fe78b4dc2501983b35055d342bfb0f5ffd6c. 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/DESY21401217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe163cc885646e2a419cac9efbf2e60e09a78ac0e158e2f31fadc41a85dd6319c. 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/QMDA72337858.
CITY FUNK -Twilight- mixed by DJ TARO of Rhythm & Groove (DJ MIX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48c7debf5e8d7744ff667d726c9794af597bd064e567dc17a4119fb05f59bee. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCJPA2445730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b1afe9bfaecbe5812f334284898286cfa24e285d93f9cea969569986739d76. 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/JPS802100176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c911491d3515fe64d5d1442e6a2d44b0aa45e827b5a8de4f19d55a3e422d11. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/IL5842340907.