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 0x74cf3288e1d0eaee7cf6140665ef1019d1b9352ac0242abd0757ec31a8bda7fa. 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/719768a1-9f5b-47d4-8e98-6b0a27173c41.json and https://artists.proofprofile.net/proofs/artist/719768a1-9f5b-47d4-8e98-6b0a27173c41.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 0x5818100ed93fe0ef3519012ff682cb6100d0a1fab51d8b6a897f2284a4bad9c1. 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/GBRBE0789010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3aafbb369ae89912e358c35be66ba25f64c87ee1e3b671cecd0758431f6688. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:23:00Z), 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/GBRBE0789012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f1413957de81fe894c02d4fd3fc0f27fb114e9fe7befdbf4f9178b5907127e. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/GBRBE0789013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26fce882c0e401f2983fe4a88d407cfb4c2de1476485782b8c89efae780dd361. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:49:50Z), 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/GBRBE0789015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49e4a4a85d2ba8f0b02c7d9f91c4b6521fc909ad0e1bd7a80136c8b7f26abd1. 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/GBRBE0789018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4e48bd86378d01026f49703ab6716a05dbbba5d04347e704b3ab3166d981df. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/GBRBE0789020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a6549c0938e433eb19c500336a00c8ac2a17aa141de92442dd61766510e5267. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:43:15Z), 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/GBRBE0789021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe648fe8ae93db535af258005a71367eeb932b3531d3def9c5606e681b7b85444. 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/GBRBE0789024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34424bdb2a586faf2bd81ae6281a325494cdd2b35f3f4e8b11531ec5380b37b4. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/GBRBE0788992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74afdb3b0ec8ee4e3ae083dd1e44c36c03420df4c8539b15d47ec5d13ef7e1d8. Chain 2 (Bitcoin): anchored in block 958819 (2026-07-20T06:44:04Z), 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/GBRBE0789001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x573027405f50a17d4afb39e6a9719f6844cb909cbc0667df1927ca0c1c1e9568. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/GBRBE0789003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ef8bc0c2b7b0d1eb5543b9563ca07e67b2391c8cae079f8ebb5fcd20949681. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/GBRBE0789042.
Carry on My Wayward Son - Acoustic Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd32dd521b323199989fcd8737833affb98b7fb874ffc34dd18720317347abbc. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/GBRBE0789794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe943490ed2cf944a2fa18d8433749e777e504670919cc577ac394817889362a4. 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/GBRBE0789813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75bfcabba947e8bdff023dcb719c2504da4072fecebe004bb337d54599dfb0d0. 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/GBRBE0789760.
Stripped & Acoustic Radio Songs - Vol. 10
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf37f5ebde0f9e6df3e977a1a2be90c484e8bc3a6a146f93594c4313c8089d736. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:47:59Z), 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/GBRBE0790384.
Stripped & Acoustic Radio Songs - Vol. 9
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd904a7bdae5840aa0fdc71d873ad1e360f9480d020f49d9857a486919a5622a7. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/GBRBE0790366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8c29b5c856bdd18db20039653188d338f8d47b69b2da734ac1a277a0fd76e4. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/GBRBE0790367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18eb81b9c4c489aa9b0ba369f2d01f0023d120067dd8f3402cbbbebbfab4aed7. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:49:39Z), 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/GBRBE0790369.