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 0xc417ab8af884a32c3b36117a56dcee70545ea556a096743cb87d62b310d452b8. 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/3b0b0413-59ac-4203-abce-08e75d9006d1.json and https://artists.proofprofile.net/proofs/artist/3b0b0413-59ac-4203-abce-08e75d9006d1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Digitally Enhanced Volume Seven - Sampler - Part One
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 0xd369e67f2063ac02e631d77f0a25ea06a184335e47f3d7e43c810c1e3d2b59ec. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/GBLV62208272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e3452429d2fcdf076eb6f330896de1e8d20569b518794a88a6d2f8c91cf8ff. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBKQU2425892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f8c6bae260319a7b9fa17840dd87a670f27d3e65fc8672adea8cb443b5b60f. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/NL7QW2400098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e59d0023b064a2ba63dd9dd6c9832e07df9bc30632d5105a0bc643148349adb. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/NL7QW2400099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42bcd7164c7d0dd6e506879da305e72dbd421cf3b9dd3b1533198b3ee4440b73. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/GBKQU2536101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6399141ce62991db8e94749298f3147bca00c80c70d85d064bfb124fa4bd4e. 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/GBEWA2402211.
FSOE882 - Future Sound Of Egypt Episode 882
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5c59dc5da93f10fdd49ad8dfbd6ffe2387fbe04feb3f3341cf91b466ac4868. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/UKRMQ2401344.
ASOT 1132 - A State of Trance Episode 1132
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fefe40d31dd6ecc828f49555d27924d206630b6bc7b9e88ce3d957017adfeb1. 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/NLF712306129.
FSOE 823 - Future Sound Of Egypt Episode 823
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bae706a8e8efe3a14d0351e006a2524b295c10e8b04d67f7521d829299b479b. 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/UKRMQ2301099.
FSOE 820 - Future Sound Of Egypt Episode 820
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a9fa7d560e01b708dfcd08c5c649b66c6c8070e890b48b8530713b37666f0aa. 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/UKRMQ2301006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac52d59526f018ab73b09b68833f5a7aac7d7098487ffa3707e19bde722b9a6. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/UKRMQ2301016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e404ee216d64a380c2fb5c9c76ed1fb8f407b47d5491b7abb9c7b7ba9d6b4a. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/GBEWA2402009.
Constellation (ABGT566) - Phillip Castle Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7c0f6a46fe77c50d6a57dfe12cfaadf6cdf56f0727ec5f4497a0b4d46681c9. 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/GBEWA2400786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf584ef3a5d69a69f3308c4bf62e1ea8382f3dc0c0b54656f3fa32d3fe2463e21. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/GBEWA2306969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e2ba8a258255341dad161a72210ec1a8624242e91d41515882f38eb4c091cf. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/GBEWA2306829.