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 0x1d1ad4442eb380df5c57651b3fcbea82e9323eda05adc46379cff5fe58bd675e. 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/420300cc-0eb7-4f6d-94b9-c9be9f5da815.json and https://artists.proofprofile.net/proofs/artist/420300cc-0eb7-4f6d-94b9-c9be9f5da815.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 0xa4fda728dd37d29229d257f6abded6783352365a7b0f18ceb919c692caa4a3c9. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/DEEE72301772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f735fa94e6ac30a02bde4e8d8eeb07ca59735c42e7533f7ba341e301e2c8c28. 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/DEEE72301745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8555c963b55bd1d77f67017bc84f4edcab662f8ece7dadf5a49319b4cdf56cb. 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/GBKQU2415041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17e6e282e2d6055fb95263f96fb9b2102612757809caab36c7aeb96e1185d1a. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/GBKQU2415034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8759c16ef84449dda723f879978c16f9bc66c37aca1214ae004af01fb8ca248a. 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/GBKQU2415035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdfb626855d80097faaf41bee1404b0044f0e277bb2bdef3bd6146ea388b9573. 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/GBKQU2415036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf629d67292d8ebdbcb9f1f28787462cf0b06e1a4ec02fecb6d9cc589fdcbb501. 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/GBKQU2415037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x151d5c9d7067d24215850ecfd3a103d209fa6a3e42fe6d64e8072dce35f55282. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/GBKQU2415038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b0a18bd7862c94b2b79521b7eacd1d250e5ebcaf45ffcfb7435a8418d02599. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/GBKQU2415039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe01654c2188b68e06ae40df1ffcaf853272327233013348ed70648239950fd3d. 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/GBKQU2415040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8555c963b55bd1d77f67017bc84f4edcab662f8ece7dadf5a49319b4cdf56cb. 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/GBKQU2415041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2faa5f468969ca1fb52e3753e7a3bca7f47b2655190b5ae516373ee259e3d524. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CA5KR2472783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8242f0a5c1f8828a85f9a3d85b497ddb3e16d98bd0c8e7fc89f70d3af04af611. 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/CA5KR2472784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01feb29e18a88a492d461ea8180d5fcf1ba9f2ae5861d4b1ab3e3c8622dc0c0c. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/CA5KR2472785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d3ba9e57d2e0e53ddd13ecba5adaef011c07893dfebc1d3174b35af21283df7. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/CA5KR2472780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb69f0f705ccd260fd1dbf2e99c2d55550cd2e7a040da944de3587f74ef605b6. 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/CA5KR2472781.
6AM - Franklyn Watts Sunrise Mix Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaeeddd443da5503f3b662f31a66a354ac9ba3905c658d801a431ca4cbb3d757. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/CA5KR2472782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4bfdd216dec81c820d603352e13c288b948366f19d9a5a8cef7e438c37ecd7. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/NLML62400063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c513aaa935a76353026c21ed37bae3409af15061d4239fed9c8185868b907e. 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/GBKQU2426212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc44e64da2ef47835a0ad7932c940d8ff50ea1427492b57f0640851d83424f9f9. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZMHN2205684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d574229f360ba118deb332f30f759c36724fa8dbf8d0bbff8c047ddf04b3fdd. 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/ESUM72303137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b861ea10e1c034c0049ce72bae892508cd310afc7b2175f31807cba951880b. 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/GBKQU2387291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada0c207650a35f3a165ef1b4bfd1bcd8388429cf8d0bc9e7327eaa2aac659ff. 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/GBKQU2387292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc94f6f08698a1dd79cbb53ccff30614bee74d2778f8c081b8adf25ad4a412ed. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/DGA0L2358345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc7145130818ff920376984a6cbb1e7e4a57cc65bdc589cc2ce874a5fdccd42. 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/USNRS2343138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e039d6f8ec82058533420adb748ca953eac8efaa2aa6a38f0d99afd4cdb3f4. 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/CA5KR2362354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b728d1a7db668733998c6a19302d91091fe126fae105ad387235c829b5ac448. 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/QZMHK2369579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f32009dd1c70eda3969d5280d40afb161f7785085e9341c5fb4056c6ef1986a. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/ITI952300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d076e2b7e2bdebcdb8bf64529be20e07f0bbcd7a1c5979eee049a2093f7fb3e. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/ITI952300103.
Witty Selection Series Vol. 21 - WMC PT1