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 0xbf9cb2439b80ad042114f00a4dcff263623a46952f745f87044aa5c0cba4ebda. 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/82175688-c064-4352-80f7-318b78ace0a3.json and https://artists.proofprofile.net/proofs/artist/82175688-c064-4352-80f7-318b78ace0a3.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 0x24bd2754757d1c762476301a8a69f5d2f1cbfeb2e1b3daff31e625e7430d5ca7. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZK6G2068615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa5ebb70638e2b66a249ebc7a6c1cd631707bb6ca5ffd16757a894fc4583ed6e. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZK6G2068619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ffd87791b7e8c1e4873f6aad61e3fefdd107ef21ed9d3569857edc67113662. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/GX3Q92092589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a1aa8e09e7a07c630c41747b76b9ad697a124a87d6cd4c5a1ab047df4175a0. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:01:20Z), 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/GBMCZ0601953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346643e0a5538c766c723a1d4b70899b9ac9d106221db323901e119dea66492e. 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/DEG932500117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06bb739eb9a9acd4f458668305dca7e254d1b8d852f79620261cb375fc750a81. 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/QZTBF2337491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b9a3019a856aa6a27c375a513a11409e5d35303d14cb3fcfb951ee47b4b5e8. 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/FRX872015731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff3d8accebf0aa423309d8f42c999fbacea3ba6928176c7d9c982de1fa818de. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/UKJDV1700305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf16e07e196937bee66be4f567cf43db429cb93f4a3d2d5c1253a4468f4cdb9d9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRX762161573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf16e07e196937bee66be4f567cf43db429cb93f4a3d2d5c1253a4468f4cdb9d9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRX762161573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b9a3019a856aa6a27c375a513a11409e5d35303d14cb3fcfb951ee47b4b5e8. 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/FRX872015731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b9a3019a856aa6a27c375a513a11409e5d35303d14cb3fcfb951ee47b4b5e8. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/FRX872015731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f4e2980c21d9fd6739243a05cf85acc1d9727c5d3eb620dcdc4c7815f175cf. 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/FRIDO2410396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f4e2980c21d9fd6739243a05cf85acc1d9727c5d3eb620dcdc4c7815f175cf. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/FRIDO2410396.
I Wonder (feat. Qendresa) - [Ninetoes Remix] [Mixed]
Global Underground: Nubreed 12 - Denney (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1581369bae4f9aebac8ff970677c368a08e7bd4acdcd44a351826b73daf1ee6b. 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/GBHFW1800163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc066a5313c9291452cc3e3a90121ab02bc203e052b07fb73d3b9936401a0f80b. 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/QZHNC2219346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bafad7bfa22c2adc0de7bfc1971a84c6587c86b52c96aaf97f5ecba21b3d430. 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/DEG932500011.
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