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 0x13f4ad37a7d41291fd46eb5659c427ee9903cb2e26f0da9a9abb6f74d226d65e. 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/a22d5c41-6579-41b2-b0e7-e5a0e7096c0c.json and https://artists.proofprofile.net/proofs/artist/a22d5c41-6579-41b2-b0e7-e5a0e7096c0c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Canções de Ninar e Músicas para Crianças Dormir
Música para Dormir Bebés Con Suave Sonido del Mar
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 0x833ec7a4fabb1d8845ea8d36db3e6ffcd46f8a936f316a3a9d292f51dceaeac6. 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/DEHK91997131.
Estrellita Dónde Estás - Con Suave Sonido del Mar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a34fad7fe32d083fcc31c0f4bb628784cab50e8be8a151f418ecd266a3613da. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:54:52Z), 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/DEHK91997132.
Calla Pequeño - Con Suave Sonido del Mar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3e903516e478cca3e899c47e2d9bfeb77c63f5543ad38d6b27a0ff48b4bbe4. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/DEHK91997133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c48523c968deee6afafe6af1c83dc786e855badffe46a9129885d2c21b3f90. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/DEHK91997134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5380c9a0262c6d2e091dca10956d07f89f83846f822328d8c505fa8842bbb74. 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/DEHK91997135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e9fb91d3790c9ae1fd04624ee4b54a42cb47f55cf2bc8b9ffda21199254806. 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/DEHK91997136.
El Viejo Macdonald Tenía una Granja - Con Suave Sonido del Mar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1139042d6ae088f07e0360e6e5453071ba6c464082a8e9694e73b4d967891667. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:34:07Z), 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/DEHK91997137.
La Araña Pequeñita - Con Suave Sonido del Mar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26285d0c1313bb4c38223606554595139f34da061223abfc7438f632eb2ee213. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/DEHK91997138.
María Tenía un Corderito - Con Suave Sonido del Mar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55cc48a0140463bdd595312b605db77c6d4fcab89f84df883c4a204db032fd9b. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:36:20Z), 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/DEHK92000601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108f33cf3a4f1abe53576e0f195d4425e2f9912d2fd58a12906eb2e791fb22fb. 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/DEHK92000602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeaac4d168b6764480c11276113f9847c00e3d8c5ac96aafa4b6cc35e22ab983. 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/DEYS52000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec0781363dd61e68fad1a5f1b98c833a4d2586a9a01247258fe7439165f1a9af. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:43:35Z), 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/DEYS52000022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2053be9da7b38fd49ea951521ddd6dbc6f0d946ce4baf9a9b562df0964547170. 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/DEYS52000023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf8b326f637fb0105da454cdf8079de95fe2a406e014c7dafc55b9635a4d938. 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/DEYS52000024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c1be19f874144494cbd332bc1fddc9d45e3afb862e07c3de8036e141ad5c82. 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/DEYS52000025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f2258b3783309e8b138142a8b8f9c1a126c98f8ca67125293bd24620336efb4. 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/DEYS52000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x885f969b2192c2061a87221f453986aede8c2aef9cdec3c5e32449916b320315. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/DEYS52000027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d59591dc8e36ec2ab89fac16ba638584320c8459dc793c6982711d80453c79. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEYS52000028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54fccfa7456c63518ff9e65a644e6ccae3df443a0a53f4a67f2ec768329570c. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:16:51Z), 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/DEYS52000029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08298008e6b118aed1e63cfd216cd4243cf853548b56d6246c8e69c0707cbcae. 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/DEYS52000030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93ac6d16404326c731acbcc1a22600dc427afd4f1508dc7e6c378b3caca2b66. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T00:40:40Z), 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/DEYS52000031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3752bc72cff4e4d8a371702a8340ac7f5b0c39527f10957942b63dd5d2aad95c. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/DEYS52000032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f629cc0397557bc8160438b8c6c7ad01d4f4891c49618e8d026350deb05ce87. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/DEYS52000035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f2b3182942076b49ccfeb27c8bd87cdba64b4a272eddc292bac3c9576f647f. 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/DEYS52000037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2fb470fcc118e32d98e30accf2722571e757f7516eaf7973e5a0c447cf95457. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEYS52000038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e812ea134fafbc9f17e976123862e80e99c2d40380221350f7b8ddcfeaef55a. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T14:02:12Z), 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/DEYS52000039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedcc309c9de0a81cefe77180bb2c2dadcea41c082e5cc11bbea0ca64888d3956. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CH6541887104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a7ce75d39643bb16db5d2f331d3147779cdd2b4f8e45ad8bdfe528c1cd720df. 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/CH6541887091.