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 0xcbf610c3fb1aa69f5e0108a48fdd786c03783b44762ab508e88b4d9d56cbaf1d. 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/de1fbb08-e8b5-46a0-9955-884f1d199d61.json and https://artists.proofprofile.net/proofs/artist/de1fbb08-e8b5-46a0-9955-884f1d199d61.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 0xebe5800506467a76859b43374f1ba866949231cad1c3e629e69370ef3973a5f0. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/KSA002302743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7473af94d42653ed3f1859c0d007cd417a137e3a4b5d45e704bc7e55227f9aee. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/KSA002303563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6bb45253eeef835584f921a935c87f5a317b7dc1d2019a5215a1041f9426123. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/KSA002400203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761cf55657ff3b356e27da12db50c2c531fd485f597184ce58c6152c61e6f29a. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/KSA002400751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132ab9c5ec08bfebd26dd43992e8bcdc14920ffa763c19741604f1be026eb4cb. 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/KSA002400919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac20cd13c25748edcf7ff18b00760d261503b052c4625fcf335d5e223e92801. 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/KSA002401910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3cd0611bb5b7af3340a9f5e22a46258ade1f28622869154c26f2636e082503. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:10:40Z), 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/KSA002401911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce70abb4ed01245cce7fca2d820ec4c60d515688931aba9ea98c9e5500e62a3. 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/KSA002401912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd13bffca6d1282ab6ddd774fdef2d3a444e7dceaaf6f9baadda49e2cac09fed. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/KSA002500051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec10bf915b0c46909a8dfe4c46d0271dd857bb91c99c12c7c479541a5b7b8ce. 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/QZEKE2013884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343625318e7a32695d9a3279edc1c9a24e5f8b421c08c0b88f5a3e5c410f8080. 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/QZEKE2013888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda84abf18a2a382e5daa3ad0cf80e3fedb1ea4ff1773ce7b376786f0c259e37c. 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/QZEKE2013889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4768acf371c567e749426d8e82ba6f230176f0cd2ba9089797c2caf3cbe9b247. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/KSA002400348.
You never (Feat. Leellamarz, 1DAY, Urban Fisher)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38a2a7a04d862ef7dc3ebbe3ddd5787f31fe522e67df5031edd76b01fcc30c1a. 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/KRMIM2116347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3875e38dfd7716f4b8d2a07d7108d7bbe8252c8649c39eba9f75c21ff84ed6e2. 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/KRE131800047.