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 0xc7daad432a735b3dd6397adc03eaa4f9f4c86161accb136e0e06051e3490ca89. 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/dfdf2b4f-ccce-4b96-a493-b0b1976daeaa.json and https://artists.proofprofile.net/proofs/artist/dfdf2b4f-ccce-4b96-a493-b0b1976daeaa.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 0x7378bc94d1838ec8ecf53f3d431fc4a3e47fddda9fac1cfaa009239d74ada2ae. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/JPA961980007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201edde429ab51294ac827292715fe1be743dd8a103195653c9b6cbb37d2a10c. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:05:23Z), 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/JPA962480050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01eb212f6f6fd32d7a7eb540f16dae089c28c95009e57f0477b150dad0ab0922. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:41:36Z), 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/JPA962480052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b006c978001ac6773b5254c4bf0bf26dce4d491b8ea2acdafc7e59eefb8f8f2. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:28:50Z), 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/JPA962480055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849bc85d3069e2cd9a761e92f18021765ca4cedcb7b35aaf524d67874647aeae. 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/JPA962480056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9c75203482eefce0326cd983640942734c168de10a5879ade25b3bf49fcd7c. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/JPA962480058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb9868260662edf3f0c43f3c9de1f078d70981bc89994dbefc829fab796897f. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:33:41Z), 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/JPA962080333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8250e29ce0e28d982e294063bb29fe60963311a92ebe928277d374d1a0cb91e2. 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/JPA962080335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fef3b63bc2d17c06a1411c20a3c80ecd4c243a46b6fbb11ad16e86770b48e3b. 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/JPA962080336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902888d5899cc3b54deda60d2015c84156b30e3e616461381d92cdb6e2cc8190. 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/JPA962080337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775810b19c7fabe4e7ccb800dd0d19614967bb4817617a75f1e4eec872b18bf1. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/JPA962080340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da9df42b90b0576d8b28a6f8220fa2d2fe230ae964de2ea7c3af4cfd7e6ef55. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/JPA962080343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f838aa012f68ff5a1d8afc20049660c83ad428ce75a7f848c6a51f9f6120381. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/JPA962080346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca58e927842bfb40194b16400e4811043e199ebe7eebeb22bbf90e261b1bfdec. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:04:26Z), 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/JPA962080349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2087887c558566d8bc833c911dc9dcf3968a46165fae75f57596d5937b7782cc. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:39:09Z), 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/JPA962080353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3044a48481129b327e4ef44d1ae36c17f2f8c9b1621a4c7ec784d272b1a53e7d. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/JPA962180226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91cd3d9bce5cfb837488ec656fa4e735683ede1d32403b725a6c9f5043669032. 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/JPA962280077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e84e246a9d2674bc0bb244eedea4ca12da7189a364151b23c4622080b3b3c6a. 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/JPA962480046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e8110acf1f9313eb63bc91d1dccd51e4d2231334e269b1cbb758834caf676e2. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:24:29Z), 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/JPA962480040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5dcbb16cb26a0eba465436e4782e28fce173e4dc89ec214539ccf84036c3d6c. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:41:11Z), 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/JPA962480044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a0c520248a8f499cf560bf70ca3459077091e5dd7a8b027df48509ec7d7227b. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/JPA962480045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd7009adc0ca458bca38705b001316dd98982237414f941864557aafab38d57. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:28:37Z), 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/JPA962180225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48c12c91d9192a5a2908b28129797b7deb89f89d66e45668de0dcab5269b0875. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/JPA962480048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f693f7967b0dbf64402b98e9c9c8ac7ad2d34c5f03fab468941d403b245b34. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/JPA962480049.
MY FRIENDS OVER TRUTH feat.ダト・ダト・カイキ・カイキ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad4355d6c3a7a002724c57f02ee2b4cef02c0d61ec49c8fe25108ac12b2badaf. 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/JPA962580174.
Timeless Melodies - a tribute to dustbox -
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe345b2b5bf62b36c9a99079f25efeee7fbfaffd296def039df437d6ee89b88d3. 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/JPK402401183.