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 0x67610f2e1c2ff786fcbb5244a1836dc242f0d82424a5fcfc2b20dd9cdad191e1. 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/5a09e3f5-676c-47ff-bebd-acb5c0119bcd.json and https://artists.proofprofile.net/proofs/artist/5a09e3f5-676c-47ff-bebd-acb5c0119bcd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Please Don't Forget Me / E Hine Hoki Mai / Le Temps De T'Oublier / I Can't Stop Loving You
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 0xa2a1bb0a1f847b5dd6a4310060d79d261c5d5dfafad3309e9cdb2a3493182c8c. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/NZAM02200080.
I Love You So / Tetufera Ehoputu / Matamehai Ote Taa'i'a / Mai To Ei Inano / Changer De Vie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb63dee3bb6695bd0ee28f6901b1efb9a7eb5f6ee7eb7223748342a7495ddbf86. 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/NZAM02200082.
Avec Elle / La Porte D'en Face / Vaihiria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10475ce4f2d76bc99e7f3e0531ffc0e14e91ca49a823aeb4495779ad91043155. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/NZAM02200084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25d5a47481c6ecba44fcbfab3cf0c1942c004ec8082a065d51849812f601f4f. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:09:52Z), 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/NZAM02200053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5218368db9d5bcff877d01d42c611e432b3f77d2b4c32119dc38221d83e4ea22. 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/NZAM02200097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5169d55109a3e60ff68de466c86edd0adae2d637dca68204294fbd0ceff9593a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/NZAM02200100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf1c0ecb8c7c9eeb485be35640213999ea64ba3d50c849d2574db548fae8c830. 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/NZAM02200101.
Toi Et Moi Contre Le Monde Entier / Hawaii / Maururu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c935addc270cc3018710b8e1d8f211faa31c465d11d603ee7647cb7e50b6a82. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:37:49Z), 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/NZAM02200104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94474230799bbcd0194504515169bd185af2506065143f3bb08f9b1b2f30790d. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:26:39Z), 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/NZSA11200274.
Vahi Ateroa / Ire Ae Te Pahi / Taime Haumaru / Tiare Hinano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e7ea28e8b7b48cea9f4c52bfeb2395dc51bd4602bf0c4f238d4645ac1aad7f. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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/NZSA11200275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b1ab1c8bc124e8e368c3c1620b2154391332f76e8c28cd03b6d9241e8f4927. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/NZSA11200277.
Vahine Kaina / Ua Tangi Te Kukupa / Kaina Ote Toau Toku Henua / E Tamarii Otare / Tamure
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7b2cc6f7005f75595ca304d559ccda31867b755f4971f6e6a9fa7f156d2170. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T19:03:18Z), 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/NZSA11200278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b2caaef35c48800442ee8b4da553f5deccf5d981eb851804244e6f098b804a. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:45:32Z), 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/NZSA11200280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551ff28ba32dc8c2070580fe88312f916ecd4688279b75175cef0cc702d85889. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/NZSA11200215.
E Tai Purotu / E Mata Nei Au Ia Oe Tou Tama
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88cbc7d0b742ed5c694e8b836746d36a11587c22f423b33c505edc0af08045a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/NZSA11200217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ec5dd0532eaffcad193639a9359542b751080e9326669336ae3eb829d6b621. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/NZSA11200219.
Topa Te Mahana / L'Amour Est Passe Pres De Vous / Horo Mirimiri / Maite Maru O Te Ata
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf71228d4dfc92708de12a957bcbec18113b251aa917172160b44f365c6e58fef. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/NZSA11200221.
I Can Never Let You Go / Danser La Bossa Nova
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe792012608a5024d8d7ca6994add311c428472d1a11391e1e7d87ae6b7b84505. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/NZSA11200222.
Mama, Mama Ite E / Taparuru Noa Ra Vau / Mama Ina
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdab2ee6436783936398e27f08c5cf37356dd22c3fd7695386b6909d61a1a41c. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/NZSA11200223.