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 0xe4842e58a7e0595c6efb448bd5394f842780a54c39f9f2d20d8d904d052cc5cf. 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/74136231-30b3-4acb-8790-1e6365152006.json and https://artists.proofprofile.net/proofs/artist/74136231-30b3-4acb-8790-1e6365152006.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 0x38c8f43f582b2f0378cf98928c4f93b436329078764c4da10e0b70b895a6c451. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZK6Q2002800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4359985281f284ac88fa0ca42894d800b510240eec11d79f50e0ad39f9261eb0. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/QZK6P2082003.
i feel better when nobody remembers i exist
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d90e1fdaa8d2350412b4ab821599d1ca977e41a6062a6827bd7df9138543f0. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/QZK6P2365796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ed875656ce3fc3d01cbf27cb0e434dc593753dc9d1e57fc9705cf4702c6a2f. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/QZK6P2365799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82228236e7f030d87e819026194f2fd89fcb099ae0f279a2a4d60e334a71f28e. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZK6P2365800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf06dcd4896e820afdd26275a825bc065928dce8ee862e436874e68ac6b50613. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZK6P2365803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f36a8e7393a25bfdcd58a48293fde2070158932591ea1c2e97d033252ea23a. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZWFL2396894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2904165d451f4a99e0e7be81b0648709f33635de6c4083feb09be8378f4fbc8. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZFZ22444078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd361d1facd0c45eff706786c38d37c3946f6738a53674e35ccb1b0699e7be7d7. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZDA52417224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e42007630b528456ef1f13e09ead3cd56126af71bbef2ec3fa48e7d81623aa. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZHN82426321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d13756eb20c74322bb48eec7da2f50690ddb4736af291411e8d924e69029aa. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZWFE2359495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabee73c1ef07ee093eb543154de2b93de672e0acadcb76b148e4fdb4fa7c35f7. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QZHN82426322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd361d1facd0c45eff706786c38d37c3946f6738a53674e35ccb1b0699e7be7d7. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZDA52417224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44da4eab770b108946ceb83d28c2a9fa19db78bb016aa667bc8bf0c397104aeb. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZHN82426323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc7e4665195882685b2ba517f83933b988373f33e572858271409f3efe026b6. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZHN82426324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c63fd13cf25e427e4623e4abaf133f75ca2c7fbd98bb51a9e2c1f03601be14. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/QZHN82426326.