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 0x464d7606f7cd438fd0be340f30fb9f604054c4f8f2386c10e02bd267b340c803. 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/c4da6d57-acf2-4dcc-b624-0443279c18e4.json and https://artists.proofprofile.net/proofs/artist/c4da6d57-acf2-4dcc-b624-0443279c18e4.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 0xfee2fcad920ce94f53a2ac36292619447eb0327ee2e19de77828211f6a4ff54f. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZDA62209758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa51befb63fb9cc096b0f3ebfd813cc2e7334d1b4e663e4ec688a46761d7ac9de. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZDA62209768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe05ecc245551eb41700c52a4c34db8ad4db61ee765a5a8e964f34b845acaebbd. 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/QZDA62209771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f6da5025c3032f0dfa261068fb8e025bdc1c4c7aba0fca34c0c718c5af5c11. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T03:53:34Z), 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/QZDA62209774.
The Stages of Grief (Acoustic / Nightcore)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33762065efcc16b129cbbc5886df8d1a2df0640ab3d53456c9ccecf8e574269. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/QZDA72248767.
Modern Myths For A Crazy World (Nightcore / Sped Up Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38915dd448e9a298573bfce6063f5bbd80622783643cc8ca1d43e1ef5ab70d61. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/QZFZ32350573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe71d32b124aecff4c8e184e0e4f1a5c2e556a77189b2eb65131473cb3a0fb16. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/QZFZ32350574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3c9a743c9c0c96aca19d84a0f83c465cc1a7c6f4cdf20b4800c1255fb8141f. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/QZHN62337440.
Six Pills - Acoustic / Nightcore / Sped Up Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef59ef53d1df5ba7c39aaf3607176337ffc92d7f05b7f0dbf81780ce759781ab. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T07:56:08Z), 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/QZK6P2326258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d28d2b13efd51e263026f08f61f8911a1a2d09d8cb4a15e6a31272725da6bb8. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:17:48Z), 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/QZHNC2358166.
Love, Loss, and the Woes of Humanity (Nightcore / Sped Up Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5c7a4113e43f21c999006f461c6c75e4838fa84e0b50113e68d0c0f4ade440. 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/QZTB32395794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ddd4bcfc22b0c9135fb55284cd08f039139ec885d5e94aec2402b008b6d05da. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:50:26Z), 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/QZTB32395795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe9c36e2788ddb24b8e1e1873986bcf27a474c005a9ff72ef056c12a77d7e625. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZTB32395797.
Just Want Somebody To Hold Me - Nightcore / Sped Up Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d6cdcd38f7ea6b133cac47fba868dc1a3fd6a8d1d588108be7f377fed55e76. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZTB32395801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23497d0a93c964049d9b0281eb435089c568338c5a54a5db018f94f520980472. 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/QZTB32395805.
Mama Ain't Coming Home - Nightcore / Sped Up Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33689552ff1c8b346dfad134f715e8be5b81abd10d721923366f3a6861f165ce. 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/QZTB32395809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00458e09f230257eddd9cfe41215a342e5dd9acadd49df72a6ab039adf766910. 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/QZHN52446778.
Sad Boys Don't Go To Heaven (Nightcore / Sped Up Version)
Sad Boys Don't Go To Heaven - Nightcore / Sped Up Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0a5bc6ac53c6baba7cf5fc52c60913a04b0783fd4e3c942503401bc8ac2328. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QZK6G2415749.
Fairy King (Nightcore / Sped Up Version)
Fairy King - Nightcore / Sped Up Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf216d880dcc512907ab50b9fe44856fec90f528f1b23418ea5f68d4815b2eb7c. 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/QZNWT2451110.
The Lonely Prince (Nightcore / Sped Up Version)
The Lonely Prince - Nightcore / Sped Up Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a2368cd3ac85aee052dddaafc471a4fdca704bed6d815b0ebab766d9089b92. 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/QZRP52433731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2582620b9e7ec1291c78b9036f75a909ce804c136422136a1b06931cefdfd7ea. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T05:20:43Z), 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/QZTBF2492007.
The Wizard (Nightcore / Sped Up Version)
The Wizard - Nightcore / Sped Up Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3312ed44e503dad7b355eac904d3f73ba408b84de27c78fcb42d65546cc921a3. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZWFM2424720.
Don't Cry For Us (Nightcore / Sped Up Version)
Don't Cry For Us - Nightcore / Sped Up Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e68359e64581378a877e974db75cafc66fb4565f23ec2bd738381ab59e75eb. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:15:12Z), 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/QZES72533924.
The Restaurant (Nightcore / Sped Up Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x319c5ff6bac862281a2719432d37d42f7be5f087cfbf443191fb910f056a4e24. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:02:13Z), 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/QZK6G2563500.
The Knight (Nightcore / Sped Up Version)
The Knight - Nightcore / Sped Up Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d778530ea7249528c09885f3919de193def7b9f3aed887d250d92bab64cdb08. 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/QZNWU2557585.
In a Land of Hopes and Nightmares (Nightcore / Sped Up Version)