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 0x541ea17711b6cd905fbc7a05cf7b86371cef723e2b6646d41e1d8b72920554b3. Chain 2 (Bitcoin): anchored in block 953773 (2026-06-15T10:40:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c993bd67-e703-4e3b-a4d8-80a43295faab.json and https://artists.proofprofile.net/proofs/artist/c993bd67-e703-4e3b-a4d8-80a43295faab.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 0xb2efd1aad7ca8d30de88cb78dba3a9e2d2636f0653899f547c0d051ae0118f2a. 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/QZZ7N2470466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc296861097ffab19870c52d43f45a6cfbc75e4775f05abadd551e877bfe455. 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/QZZ7N2470467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad53a5144101b2ecd574db8aa4f45d9d434f1fd2acd85bf2edfbfd335c32bce1. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZZ7N2470469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338f9b1c0138b3ea9509e21fa7afab12009105cca47c77a477f41f32656e560c. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:31:40Z), 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/QZZ7N2470470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051555bb55d6388ebe22d89f0b627f596aec7e6e950f9da288c39ed02d83ecf9. 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/QZZ7N2470471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd22754545d7985120562a16c6e3b033de6244519851478be110ef09d6e64dce4. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/QZZ7N2470472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e9b990743988d10b95df2353435019274c9a8de25bd4ac4ee7783cfe02faea8. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/QZZ7N2470473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4d41bbcb8f4162c40961b10cbef35cdbd966fbb76bb93330e243f73e934c48. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:32:43Z), 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/QZZ7N2470474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37091d3a6b00ec8a1212a69c9edee4139e94fa4d192a9c05f5b19687f54aa965. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QZZ7N2470475.
The show must go on the next opening disaster (skit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe08af1f0d2e07c676d460601740ad691f9d650c06663ae725bd9abf5095802e2. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:29:29Z), 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/QZZ7N2470476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f56e66bfa7b9cbb69fc5757c1a278152ab2f5ebb37ade37d60a2795c8d7713. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-19T23:53:57Z), 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/QZZ7N2470477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b916c3f2ed056517b14253e782a3da9d443101d305c0039254e673ffc8aa92c. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/QZZ7N2470478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe59c1e791f3384dc1f5b63d10105b05bf04beccba278ad2f4beb2eb505a2f1d5. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZZ7N2470479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x946720eb2e361438fecfdd8d3adc309d0026a5e40e9c433b3075b8007f3afcb6. 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/QZZ7N2470482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486d3d14323fafd55b8f33de132db8ed9ad4f94ebddf85b4630b2c3f1a1c4d01. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:29:38Z), 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/QZZ7N2470483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ffb2c388b6564e47282c53a5621d9b5691160ce76e14576af64b6ef6f8a844. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QZZ7N2470484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf8cf07448c9eb430af96643810d91d0461f08719c0d07851d30eb1b24385837. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/QT3EZ2484456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc149f4dfad6d4f1532f99d8bf3c6524df3740a5a6d17bf8f58064e5f474ee850. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:04:46Z), 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/QT3EZ2484457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861b728a93d26fb0d9c83c0260c7b0d034db9948e847f0ff69123bee4a73ab21. 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/QT3EZ2502027.