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 0x72e79ad8c8aa3c6a0a914325acd8881841559ef19c9a559bbad653de056e55f3. 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/531e3beb-7d4a-4329-a4e1-5810bcfa6890.json and https://artists.proofprofile.net/proofs/artist/531e3beb-7d4a-4329-a4e1-5810bcfa6890.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 0x725953be336452b6b60a8ae7416bba538458a23b4f6344cca51790c64aba3ea4. 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/NLQ8X1700121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab1e2c6ebcb510df971cdd0525172b74b58f6718694cb0de7bfd56c6e7e785b. 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/NLT2H2300912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4078c5120b6fbb52a2f5ffafe2625bd30c466ff66e8e79a925a83ff609619944. 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/QZES92378446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf7975955dcba74af624bdedb105b77c99345b7e89098b7ad3efa30fa71e6baa. 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/QZNWQ2216328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1a77e06552a46a0ebaaf10e3e3a08fedcf08d82f013bce49ac52f1be7ac5cd. 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/QZFYX2283238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x928337d3a077f35a92d4aeab1023b89a7fc3fb9fa5752ae059b4f15cff5b58db. 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/QZTB52257801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf7975955dcba74af624bdedb105b77c99345b7e89098b7ad3efa30fa71e6baa. 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/QZNWQ2216328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x472805ecac4f9a7beaac0ed86411f887f7e30a093e189e1255268d5bac319864. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/QZMEM2235595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1a77e06552a46a0ebaaf10e3e3a08fedcf08d82f013bce49ac52f1be7ac5cd. 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/QZFYX2283238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee633f4484d24d656be653f5be0740f6ff03c2da4f1af2ee930ef7cf85fc9448. 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/QZK6L2539631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97990df63e9b9f42d7b9e4091b3bb24ab5f83e95bf505ea0dd676a2a5f25945d. 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/QZES52523271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc01bfe0c97be8a6b87f8dd1f8c30a4eaa5215958750a62cb8fed175b213ff59. 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/QZDA42525491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eeead6c72b6047f1428d8e692037d04e1b850c53882ef74e1a675fd1439ff9a. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZWFN2486319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa04cf2e91f2b92917a7981c0becfebabe3ec1ff16ef05abbe3005c392cf33c. 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/QZWFN2434726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2efb0927d8b74f459e5f852b7623ff186a0ad5e98708aae3679c4a8f6b6ae2b. 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/QZTAZ2494035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44258ea749c4cfec082eb7f760ccb3eb616f5842bfac575db49eb3ea72828419. 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/QZNWX2434135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4730e804ba42b74501e4191ab80e01daef56d5c717ea4317eb41a5db423793. 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/QZMEN2480658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad602a5963e3ad8b8b2bb0ab56ce040c03f41e2caf33777d2227c1b72adfa5f9. 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/QZFZ32426699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf196044983694a0bd69daa713baf77f35cff924b968bf5a128a959f8e618a5af. 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/QZWFG2301601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9189e9115529628d7e33858692d4e76b5dde0cf680e180c5b726cf8f277c06. 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/QZWFF2366006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66af270bf2be0f76c67436b7752fae56be31cd337031901c3e374c755484f7d3. 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/QZTAW2372677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5641db0488285cc5f4668462d893d714e28bf5ea43924e0e900b40dcbdae5ffb. 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/QZTAW2371124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54d21483670ac133d83f0bebdbf56c5caed4f527c0f53d16898f7c9f34837e1. 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/QZNWW2371622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3c5c27067d152261dcddd037d1b4d0e03658586e9b43255d0f23b084331fdb. 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/QZMEP2397277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d11367aa04c7486ece164b9d677561d32b3eb0413e34e47bebfafeed539710. 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/GBCPZ2321834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc9385dae93238a2d8c32838cdda0efd37b98344cff018346d5d3a0c6e6e6a9. 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/DEAR42173683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa84bb5e23e4b38930af630a13180119a2e5616cb977294f97d47cbf2c50b5764. 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/GBCPZ2321835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a0d82d9a67850d62ac0d719903b3c28e9ffd7b3df9d1fc23f663adaab52cb7. 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/FR10S1942428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc94944aefc8031245ef3c4c5d614306c2a58ab99f2e73f2d86b1b20703a15200. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZK6P2311177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e57110ced9999ec7b89659e9e6da16b1e718bcada6bf6b56831024a9cd7959. 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/QZK6P2311178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f63e39563577c2dcad89e4523a329e4f63f15b88d1f88305a72907ef9b4eba. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/QZHN62371843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x928337d3a077f35a92d4aeab1023b89a7fc3fb9fa5752ae059b4f15cff5b58db. 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/QZTB52257801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54953ef1a81fd9d5ba703d34b40584df198fb80ffcc8d44c3dc9da4fc37c98ee. 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/QZTAW2203978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf1f05dae24833885ebb8c6c32bdc2807c613c2aff7dc61c8ad3dbeebaa88e8f. 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/NLQ8X1700146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf7975955dcba74af624bdedb105b77c99345b7e89098b7ad3efa30fa71e6baa. 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/QZNWQ2216328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf2dfd651fc751045107c1aeb633301b67d74880f9edb61097d61228f07c6fa3. 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/QZNWQ2216329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c13951ea61bb6de21b458938e1129fbd8296198dd7be6b15a5af1ea5e9efc9. 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/AUUM71800849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725953be336452b6b60a8ae7416bba538458a23b4f6344cca51790c64aba3ea4. 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/NLQ8X1700121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9b49f83117cb1dc2ef69a2ff3a1f5599575de0c231b6a26d3d882c273a5844. 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/CH3131620131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5906405cb70ddcba8e6ce9e2837b3d08691499004062a83f1254c97e36d7a26f. 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/NL8FJ2300094.
The Light (Incl. Rmxs by Superlover and Keyano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc518d1b67b385a0f1c2567e10119d52e7b3ab36a32f062d5b037b30948455b1d. 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/DECL81700388.