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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedfb4fd4f8b1c869669f7c8eada988ecfa764dcba488d81e53c47ffc9332c8b8. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e5180818-6206-4111-b36e-3dd59214f005.json and https://artists.proofprofile.net/proofs/artist/e5180818-6206-4111-b36e-3dd59214f005.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c544482d274b3c7268c75b78e0db1af59e576c6028293b16f5ab43a928f8eb. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/GBWUL2046914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd109144df2b911541b7bd29b2b08fe3d5e78e72a81f9c9947521b4c73805a0bb. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/GBWUL2047093.
This Is How It Feels Now (The Suspect Mix)
This Is How It Feels Now - The Suspect Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3bbacbc75fac428889875d04511230abb2dee3b2b4c8b15984ffbbe251775f. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/DEHK92107402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b4fd1a05c981374a13d56f510e480304e2c9a3cbcf4f594e6076aef727989aa. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEUS72200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572757339fa027b59b2be09b5c06032fc6029364b1550f2b06e6b3f96c5cc1d1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBWUL2147095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf019da5de6896ece44dd636f210aca0d3344edcc9698b3dc975529a71a54a9a5. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/GBSMU5756252.
Afraid of my Heart (Basslouder Remix) [Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05306a3b0cc275c76def2540a4beb986f7041e9e19c005e7ce48db7d121d5c6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBSMU5144203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c20ac9e2dbc2ea0cc32985371721703978bb7494c212f13fdc4bfd9ba8c741b. 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/GBSMU4351716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35bba25dc5ad603550d928e9e058e97608daeae1caf3de633be6347f5945f7e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBSMU4908531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea99f767c992aff3f634ba5f621e814623dbe477d045d9af9952683e1ef49f4. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/DEDM61800800.
Die Besten Partys - Voggi & BaseTo Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ebabd06cffe87ba6ccc1f6643083105126b2c4d66ea602803f78b84b151ff5. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DEDM61800807.
Die Besten Partys - Voggi & BaseTo Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae01f629a0bd1d04127100243bd965c014f7ddaf5b61eedec53c84d27c86960. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/DEDM61800808.
Die Besten Partys - Handz Upperz Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1461b9746e69deb80c9e40fb38a24dc8275cc60e7d01bf1baaf868a183e3ca96. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEDM61800804.
Still Lonely (Edition One) - Phillerz vs. Blue Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf43613d6ae7339f40d418ce57d4bfae46265d6d2e95276ce4f6e13a4147347c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEAR41642781.
The Sound of My Dream - Original Nightcore Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7dba6f77816f46825b1c2703b2785fa711996d6666c186417470bedad1259e. 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/DEUS72200080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f820e042115601cfbbadefe66e57d28c8e1dc22be7515919d571f9c5c13fe8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEUS72200077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e0bfebaac7b16624ccd4eea8b95bb33adabd170125b7e2218f424cae556472. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/DEUS72200069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a70fcbebfd94e3da28dc5eb9ad4e36f5cd6421aa42d5b89306001e40584151c. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEUS72200075.
The Biggest Party - Original Nightcore Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6b0ad990e75aab0690f41775135dc9c763019ad3df3f96c87b315f5bf49367. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/DEUS72200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f8a69f6d6c9bf3c0242face25f150427657345c61cce128f7ea81914ca04a4. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/DEUS72200076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0820489874fb7e090f41ef8f4874e1762797d20eccc881b9743b318deec1e472. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEUS72200083.
When the Sun Comes Out - Original Nightcore Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d622a53f87af83ec823358a60408ad2fc6c699efb7ce619f7f597b6d3dd198. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DEUS72200085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49faee5c13f07e47033d621f2ec5cc4cc36db49e3b0447459f5e7498474498c2. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/DEUS72200079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfade0632c16eaee8961dc89bd4fcf3e3dea56cd3a3f3a5348637e054b9ad18a9. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/DEUS72200081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5de4f74b21da4d5967a79868f647d678eba8aaafad64a569590ce2d7928e16c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEHK91687721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfabd42cb24e958b740bc4efa640f6212bcd2ba22710720edfa289687e42e5f5d. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/DEHK91481602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x272871a31581f2d7cca1dcf324e3a826a9826ba75d345dd90185cf574e31ae6b. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/DEHK91261306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7840ef5e4fc438b24b418a9930f684f23b7fcc98f83f4288bb90c6cb9e092008. 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/DELP71800097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47215753b04c84699252720b25c8a8c488a74219df6874a09a5cc99c497f511. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DELP71800159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d09a3fb6a4bc9492bdfc9c1ba64f553298f13ac11ee47c24d0667aabcc8a82. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DELP71900049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1edf26f547a727bfaaf67532cd947c83722014dda818dcf0eac288f497aa51a2. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DELP71900028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99710df4f7cb5af519df0c886334a8282f77c3faf03b8e324ccbe0d7f09c38c3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DELP71900050.
Castles in the Sky - Dan Winter & Ryan T. Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5148d90c18baf0cb848a6322ac360e9bdf33307623e20d9397b74210ff4865a5. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/DEHK91789964.
Touched by the Sound (The Remixes Pt. 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93d152facc1fa19d77261ee305a28960219d1050deee06664da1df273663085. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEL711730006.