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 0xfeced3065efb50058b59abf78a26175730c644f22ae312e48cbb89695bc96026. 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/caacb190-ab8a-429d-ba38-3479638135af.json and https://artists.proofprofile.net/proofs/artist/caacb190-ab8a-429d-ba38-3479638135af.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 0x9459af604f3d400c944ab77647a58937de27eab45fff2e2a492f774443806bf1. 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/QM6N22146657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275777a1d5737cdf85b327725421371bfbbdc2060900b2aaad46b45ba5155f10. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QM6N22146648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8307cd03e3b1c5053e165bd72a61cf27355ae5a07160ad95a8b7233901c217ed. 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/QM6N22146650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbff3ea29009728be0efeec0a1c7d61f88579e50df3d7840d2ed00bec8cb8741. 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/QM4TW2253871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e25b92017507be0e295ee03903d68682c526ffd7662129c96a0df24ab4af39. 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/QM4TW2253872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e063813cec0ed788f563734dd19d876324424bb851495e07e803edf45e718d9. 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/QM4TW2253873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5971d40c091cf0dea35447c0f5a9bd8fb169a3e1bd8039158f4360869749b46. 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/QM4TW2253874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61976e87146178b9fbb6558aedd62994d7c353a2ad856c226df695017304beaa. 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/QM4TW2253877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c65cd91d3b45d83963056309b7795522ca7767a8bcc459528ca20ec36088ca. 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/QM4TW2253878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42fce48ce2e61341ddb12f024580992b8cf20fa124a983c79ce9aaaf2805ad8c. 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/TCAEI1944573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba13703da1c0771c540bb504104fd5dc57ac1c0a09a6bdea6c597b55c0e7719. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TCAEI1944581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1642a771820523bc53574c401a4c6c3b974aeab1a12f1091ff2b376be40e8762. 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/TCAEI1944582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6afa9d65988aa2a5aac677ce1047a0e2d6338d92d9d408f266be8fe91a43991d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TCAEI1944583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1915497a2549e846ce441f96c16024f8fdecdf3735fc45e406125784d3963484. 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/TCAEI1944584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc093386f5ee7192ab5b9e520ddc8ea8306a9d46da9a2ef20594b2e7a48fd218e. 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/TCAEI1944587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c68354de0df88aa5c9f7289a73a7545230fabe09c5ff50b8a92412aace05844. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TCAEI1944590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15b6bc1e705b25e33716e22922814bc06925450844bb9d5a532ac0ee8b26560. 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/TCACZ1762003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94895cda055726c9b516f3257b28850f43e5b9b7d10dfb605e56661a0858aca1. 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/TCACZ1762004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1964040ff20803eb11cbf0e21caf45927770d02a89c9245c8d5031b344c251d. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/TCACZ1762006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d898897d45d6c19406e873964b0c671fbc72c88a39d9dbd5c70b51469d090a. 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/TCACZ1762010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b1c74bf7d04b5b0850e3fa4e6940753b0b20e9be668087b4966da6c1ece09b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TCACZ1762012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16812c3a5c42605ba09d23a02f67e1d2809fee51ed86f60e8cef54e164aa2a42. 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/TCACZ1762013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0037c94e7de3bf261475cafc113b8435551f6164ac7743611970248e48f75a. 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/GBSMU3963308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa44697c7e4302dd7848c97b3620106e5c9add4286655c812721db89a7e403fe2. 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/GBSMU3963309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc118ce4caa9456b2ba409a9238a99ecfaa51b647d65604aa7943d17c3c10de78. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBSMU3963310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1088178173e2b0ebdf5ca6509d2693f0fd6df3f3b6c429d45a835dc6b79edf. 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/GBSMU3963311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ed85890786a8d3733af15d174cd36d746bfbad37f4aa3e3277032dac96f68e. 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/GBSMU3963314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf775250290c42c6e0728879fef6424aa809b46d7450e89c63f6936680d396f. 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/GBSMU3963346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb61dfc4b72d406b20146cadeaf94d7042a1a0188458be622ea2bf6df593a50b. 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/GBSMU3963347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x731b66b6bb4eef889e6462f91a0ae18a1633db0d082788259f874f0761422fef. 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/GBSMU3963348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d8baa0f0e66ea76a54a6aecc568b088de261c993372689c706c6ff05e73be99. 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/QMFMF2329941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8947c3017a8643f42fdf855f18d3c5981cc0f12001e8262671f3d0364232edb4. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:09:57Z), 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/QMFMF2329944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e945c00fba84d0db6dd1a0a5333c89fc3681ec57f85b3359d7cd3f158ae0680. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QMFMF2329945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d8baa0f0e66ea76a54a6aecc568b088de261c993372689c706c6ff05e73be99. 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/QMFMF2329941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d8baa0f0e66ea76a54a6aecc568b088de261c993372689c706c6ff05e73be99. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QMFMF2329941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d415075aaf28b50dfe5e27258e480241fb44944e314b538b2b5f0b85430ef3e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/TCAEI1944616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6e75e99ac3910ab60bd960291358b3d5b224f0c1f3d12e037544bdcab5cfca. 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/QM4TW1542859.