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 0xf90ff206d6d71e36eb7315c26d8d9a9daf9d8bb4b60739a107f24f88b6bc0017. Chain 2 (Bitcoin): anchored in block 953684 (2026-06-14T19:51:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6695ad1f-5174-4b91-9071-2c1e260732f6.json and https://artists.proofprofile.net/proofs/artist/6695ad1f-5174-4b91-9071-2c1e260732f6.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 0xf69dbc2691c02f72bde671a72b5651ade34c3bf79e0ddda2a05b741fe5f0dd96. 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/NLDD62400138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08066fe63d24fd95f230351f2cfc531ae8f4de5ae3420634fd09b8451639ad13. 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/GBLV62302240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c481fab3ce80c192a3c5b752e256d0bb2af4e0386889d45bfb07a7fc057d49. 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/NLDD62400208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca8fa7b6bab5b1d89d5147e4716611492b5f2776dd8cac7595a5e6efc3a1c2e. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/NLDD62400211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02128ffe6b86537e946325d8cda8255f0f69b8dbc767ca505d0127c851c61761. 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/NLE802200336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x376f5a3286907a50188a7651d339a77acb3405061aa86710094b343a06d89fb6. 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/NLE802300490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x873161f4478158f91ded5228b8e7203d2a50a90c2dac5fdcac8c402ba311ceda. 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/NLE802300495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb91a065a6a75e251a2a1c5b625cdf1052beac4db4b94787f05223eb902c6ed5. 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/NLE802300496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb0f245ee4bed8e7da71c708e3c867133eefec8444bbdeafba77bd7bb45da20. 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/NL3TA2328902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5324bd534c3e52f3d324f0ce958e8135c66358bfb67c91a3070253654c9e322. 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/BEB682300398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe970b1fea094882cdfd2fbd5ec6992ae3da2d39109f3b731e5070b72578083. 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/GBKQU2332256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc8de8fe02e8fba6b3f719b73dff48e13a9900798baec891b43a0a29b2d416e. 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/NLE802200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f680124d310605fb20a3a8e4bdf96ad5f4ae730295ff074bd82e35ac2ec8dd. 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/NLE802100636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3312b05809e25bbf133ac59749c3e12d8ea49ce941ce7eec1cc958006199c1c6. 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/GBKQU2052772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77b4c9f01987365777db36be137cedc9d65f826c7826b901210a96cbdceb5b2. 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/GBKQU2052774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c9d24fe9385f23116af3a72d0128a22cd7a719339d4154e308daafb244cdd0. 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/GBKQU2052775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e5c8578411ad115a464e2fe2507a8941e9533b496a20d39d5f60c0355328450. 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/GBKQU2052777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x698b2d3aad319fcca47f765b22cbdc9ad65c6cc924b226575c0c8a537223b5a8. 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/GBKQU2052780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628ea2e47bd479c45f29374c34a391d2f91207eeae4691ae0349ec68161d2ee7. 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/GBKQU2052781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5132c1c3b842675a329b46fd9d8c478da7d80ffd25dd80f1c0f612b2ab31cc. 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/GBKQU2052785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf4e39028da8f947732b48e8382b3a46738510ce94c3c54b0d957367fec2ccc3. 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/GBKQU2052787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8eb294945595cd3c1d30d4e502c077d4ea981960f0e73cd0a378c3dff7760d9. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBKQU2052792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c51a14e743de21d929b97bbc9912b4cea47cf86cc7d60e9a86bdb5d528fe26. 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/GBKQU2052782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf9652c75c43e34e918ccb09d4a3ad937347fa6f4463e80b05163c3ee8d9680. 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/NLE802300364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9716c7cf6b7e15c5db3c02ac7e4c7575188031430cd5dd4c465cacc1bdfbedeb. 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/NLE802300105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x900c72871ca913357cc412a3c5ae99004d08cca22fea32040dc593e932a8146e. 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/NLDD62300143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78cb31d199c466b575adb973eed1ad64a845a0c2561e73d74fb54b7147f83a52. 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/NLDD62300147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510c7909c3b830a5cf55625bdadd791185003f8075c4395104f916efc791487d. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/NLDD62300153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4466eb23312f9e4a79578d67996b46e3a73ea5cefa1718ea26ebea518fb5b3e9. 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/NLE802100425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed5046a65a553c2c35a036716be7272df3972ef17f4c5f5fc1e4779168be3b1. 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/NLE802100430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe89269cc30279fbd010fd5fd82765c9487ebf504c8e94d3b4235337124095f1f. 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/CA5KR2169365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20647925bef1b1a70ca1b1ac19b2178dedde894a7ca70402480fcc6de93d47d9. 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/NLE802100141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba0b166683b808210a9ec7f946e8a39e9ea1891de0de3597ee3320eef32aba7. 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/NLE802100247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b2ef3871934994995c1d6570cb6ae983facd5bdacd9e6ede29904c97d3a86b. 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/CAN112100690.
Infinite Force (Shutdown Festival 2021 Anthem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7ec87643c98947a5a158aca616378fd4d6edf9b5f6e2dfaa9964da45dda251. 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/NLE802100343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39719b5a74f9d2fe1ba10285037381d9403fd215ebbbedfb7576614973861597. 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/NLE802100082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe567d6fb30fb0fd22bab855516d243ea595f55c4fc9cea989555866c87a6329c. 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/NLE802100184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d2cc4d076f57815f2699a26f07731e3bd5039a031a026e98784f4476267a3c. 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/NLE802100181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda384549bcc0f2e06b8c84bc78a90ff16d7eed84806c9ce0478ca1365efb481b. 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/NLE802100226.