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 0x26b657be0d65d3507810f29776aff7c06ecb902f52f88f296a75f8008c21816b. 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/8d50ac47-1b61-41ef-ba28-b7310cf2e863.json and https://artists.proofprofile.net/proofs/artist/8d50ac47-1b61-41ef-ba28-b7310cf2e863.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 0x3366dc3068a90e741151adf89126e36eb6140727b32f9049910ffd6bb2a6bc8e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USA371278438.
Funeral Music: Piano Music for a Funeral, Funeral Home Music, Relaxing Piano, Instrumental Piano, Soothing Music
Go Rest High on That Mountain (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c921fdf2fbd195ab2968b4c5a85c19d963e5366ea721a5f18001405e9a81456. 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/TCACN1691788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95298c2b6595931342bbd7c5809428b3548adf6b69dbfbb78f555ae2e7be803b. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:46:34Z), 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/TCACN1691789.
I Will Remember You (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f69b19c316cfc0f0207adc115550d6958df187c6b0a91536814c1583c23f18. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:17:19Z), 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/TCACN1691790.
May the Angels Lead You into Paradise (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dc61545e40724c1756a63892ce7794fcb8d5655708c8c1d4c03dffec2abbdb9. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TCACN1691791.
Precious Lord, Take My Hand (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dea992114283533cb990c2da41b38eb45542ac3decd1625045013b5f2aff5fb. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCACN1691792.
Soon and Very Soon (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc865c379443d7f877af84c21f11a22962037fb05e07f623a61e884432133f1. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/TCACN1691793.
Time to Say Goodbye (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb368821b4ae98982117b29382993cc25048f33c7448a56fc9c81cc43d7b094df. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TCACN1691795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf829a6f170c659d3c3c2c1eb7c770606d895ec0826e138c101a99cd7f95e700c. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/TCACN1691799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc12dc9f07b5fa47fe42c87e9d030dd80e1c4699ecce7b921222574c50ef07e96. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/TCACN1691800.
His Eye Is on the Sparrow (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18db65c1829596c2d70bd670fa6bf741e90050624a5eb65d18dbdbf0b7054867. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/TCACN1691803.
When I Get Where I'm Goin' (instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c638b4ac3c53a1c3df1277d8a26f0ba7ac7add0fb18efd54d8459f790f1f74b. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:48:11Z), 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/TCACN1691807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d7a0272b3be1d79207d147c6e177f94a0e8369c3e8cf9c790c81108a7e7abbe. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCACN1691809.
Sunday's Reflection (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f8f56e97a31c83ece76d13f713421f62ad34a27b6d94e1468deb419637f128. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:03:28Z), 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/TCACN1691813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92e1d0cf8831ad0c296f5ca42a31ae4111128cde856c2c04962a48deb8811c5. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:02:08Z), 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/TCACN1691814.
Meeting of the Souls (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd628732d0b1f6e54f5c3bb18fbd806d1cde446b3bb5570d17be5b2abead58ae5. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCACN1691815.
Funeral Music for Memorial Service - Acoustic Guitar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d59d54fd84664afacbe5728d733075de6dae6146316be7e13d4f9319ba9221. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QZ22B2056786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ad0837a2ba2711e042096ce609c769c49285726922bfa198ff0e2d0abf250a. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZ22B2056787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c738c08fe2fded34536dfbcd4416a430862a81c653d9e6ba71038d66ebea353. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/QZ22B2056788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841370c174363d33e2ba8ea81c7614bcbcb18c155a46cf45857620d8d16f2645. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZ22B2056789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e258b9f3833529f886536c3c82e637a0fc2051ebe1a57243eea53320725b1ea. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/QZ22B2056790.
The Head That Once Was Crowned With Thorns
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x685cf65c47cc97ee96396c81fd0304ba72897a769c52399dd256ff8b5825e41d. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZ22B2056791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cddab88525c080fe3efc3c11cb90f038600d93465cc70da8a2df01592c2538c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZ22B2056792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6728714bb31f8faac11528ba8b3446fba3203bd0e4c99d4e67b0de3378f117c2. 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/QZ22B2056793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d9300cfc081189e59810c28af8062fab35f506408f671b9f3abf37379d819b1. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZ22B2056794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35143cdd0667048f4817fe8a4642bd4c343607c6ac3f6e7d0700cbf1055c7f99. 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/QZ22B2056795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff6704f1a82e0d5ceaefd8ca6248fc80069865733aeddbba3633204c2d1ca9da. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:04:20Z), 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/QZ22B2056796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2161fdef8377b37f4f24070eea4cbbffc039e958dd4cf52e223f64d574cf1ff. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/QZ22B2056797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb7cff4cd62f06b6cdf5ef4c4ad916859abf8966e54ebeaab598d36c4bf2b3a. 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/QZ22B2056798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d4fb12aeade5f85aab7cee09e4e8a17351a08c1968a9737d77ba4f56039104. 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/QZ22B2056799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc877b6eec5eb0c8ea6e1923a71963ab1a22730df17a2b0549164e5e3aa59dda5. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZ22B2056800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c70740bed0f3aec760fa76077544875ecc52f40727022ca04a33e343d58a32. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZ22B2056801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1173cd8bb6f855fb0742f8e0d93a0d85b2aa9981ac6c202c6e0c2cdf80ba8f32. 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/QZ22B2056802.
Here, O My Lord, I See Thee Face To Face
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fc803ffd157bfa2c73eadba8ea3722a217c8c3f34b63b2f8c0b413340106b6e. 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/QZ22B2056803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b2fd9227a8851fe6bce7b38a1774d2dff215e3f5057206d0e481d4522fe9d4. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZ22B2056804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f9f8bbc1a357bdafde89050cd30df0743c2779617e40f37fcc5c3fb23bfa3de. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZ22B2056807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0744cfebb52c530eb596e559ca36124c27745a46e1abb7ff7bcbccd2350031db. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZ22B2056808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65108fe6517473b7e3ece165f9f36e64190d32ace628a68e37fc378a9b4a5f8. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZ22B2056809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd239b8e8e9227ef0aa97614c9e01104724e4fb8e0b89141af610a882f7ea361a. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:20:34Z), 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/QZ22B2056810.