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 0xdc064451d73b584d344df7fff910808ac6a0d480c32c85d643583891f2986146. 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/e85991a9-1a33-4d3c-b4e9-4068160b2b28.json and https://artists.proofprofile.net/proofs/artist/e85991a9-1a33-4d3c-b4e9-4068160b2b28.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 0xb3a8daad0ac587e809997644b2567018ee17a497dc9bad084d15f18cc4c9928f. 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/GBSMU4951458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7522977fbdf264526fdbd916b83728f389b147a471bbe7493a025658468e13f. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GBSMU4951569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ded6dea9e0f2982d60e2450157f8bfa1a7d053b4d0f897db54080e4efe66191. 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/GBSMU4951356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25998dc630c9b8842bfce193b7fbeb819cdbe17353daa45fe6667586b19f197d. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:30:31Z), 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/GBSMU5958566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae55d5e43adfe5fa6700085fa66a222a9a670c710883fca53ff7d8297ed60df8. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZJRB2035329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160b97b2a8a32dc0d2888e4bfe72591b5ade6938345d7af2e2c2d5ab5e736fa1. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/NL2VN2301770.
Body, Heart and Soul (feat. Rachel Philipp)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe90e8618e350686902d366bec110ba62640d78c16b8e91b5163e74baa3e2835. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:04:45Z), 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/GX89G2407998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8b6fc0cf6c96f698661641c106dae1eacf475c754b2a1cb18f5a2d65c2307b. 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/GX8LD2425471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf92f2c6246d58d66f1cd60abae0573f870caf824a2451437b0bcf81187e272bc. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZES82569690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b900491cb0f1fde90a3596e5610f9f8b52e925d540642e5e3741d5f159221b. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:15:57Z), 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/QZHNA2555695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d586dd1e87500c92adff839dbdad6ae90c2f85405c795db17a5e69aa7a2bb3. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZNWV2596733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad7072f9bf73bfe9155d3becf977e064c9393f0cd6aeb9ac85eb1e61dd75a4f. 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/GBSMU4497334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5038d53a42b9e1a38ddb53e0eb75a609f3066f96a68bd0a5916d9268abf4102a. 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/GBSMU4426992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e914b47f421fb6222b884031144555a42645e43015db46acfae000f72272f37. 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/GBSMU5097109.