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 0x732e480675323b2f2a55cb7d349f09b1a6a9ecff8287eca6aa43e1b262f43b54. 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/fdc8f82b-cab2-40fd-adfe-d137cf8338f3.json and https://artists.proofprofile.net/proofs/artist/fdc8f82b-cab2-40fd-adfe-d137cf8338f3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Infama / Feeling Macaco Vip / Nobody Can Stop Us
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 0x18b7a272e51657368468e670ab2eaf82fccfd8d6f7e19fd42c721cf6da0fa39c. 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/QMKKH1400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5548800f42cfbdf858d1a91f8fbd182dc9ce7dc257e31180d50359d292e11e57. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QMKKH1400106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda3cf700d8057301deeda027e33301b8e75ac88a3099311114ae4a94cdaaf21. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QMKKH1400110.
New Underground Massive Alliance Remixes, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a79ff088f0327e628297ac27ed6df613c9766394152b4d5b540a9fcb1a70955. 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/QMKKH1600071.
New Underground Massive Alliance Remixes, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1788f14e9a6ba662b031d435b52aff79176fd1af7a03be1c732ae1c42ec7777. 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/QMKKH1600116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aea633072c5a061354b2c21ca8b9780b77f28e624b7f2a508bc27d984d93580. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/ITML22000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06c0580ec4cd669c1682854f67aba1e9ac5b2f6f145562555b99985d9348d34. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ITML22000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76910d620d0be9def47c97d3eff623375b249ddf9c075543aff02ac88dd82818. 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/QMDA62324636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec6b6c71d9b86e1d3434f02a280fb007de660832ed4e7cacc1163edf406d53b. 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/FRP7S1800240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af4177dfc94d8eb004544d17f23afdbab3a809f9da9a8ab9f4c99ddfc0dee73. 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/PLE351400002.
Dubcatcher, Vol. 2 (Wicked My Yout) [Remixes]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3863679f0297d7225ae7904c6682c485254a4c68aa68854fcc2055931f332a33. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR2EI1600890.
Moonshine Recordings 10 Years - Versions & Excursions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce878dc01fc1b619c71711a9fe50e4452e7e24652608847294092781c59662a. 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/PLE351900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7792811042808576419cb294513ef74728ebd7bff8edb0b8590f5fd34bcaabb6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PLE351900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x348f31ac570fe1db2271c34da42653579032591e041397e5666b8d7e0c558ed9. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ITML22400003.
Run Come Massive - Numa Crew & Fleck Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b346308c03e14ddcaea6b91f9f093aaa80e0dcdf5beadd8d81a41d40d1baf5. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/FR2EI1601030.
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 0x4905e3f7a14d7bf02162d1b2032659cc0d290de768452c9057e44d9c3bfae9cd. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/PLE351500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca466bbd62615992718fadf7fee08f50f9ceb1526d3b72052aabc13247cfc68e. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/PLE351500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9a3da839f7d44daf7289be4874ba6c15205ee32c36f07834735c8480c39c11. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/QMKKH1900435.