thumb|220px|Pete Huttlinger (2007). Peter John Huttlinger (June 22, 1961 – January 15, 2016) was an American guitarist. A graduate of Berklee College of Music, Huttlinger was a Nashville studio artist
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 0x75ed5339534d4d39ddcf483202261b83f6522c1aeca66c1e74ba6d7ea6aaae91. 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/360c328b-6b8c-4cab-8937-4b78719ce2e3.json and https://artists.proofprofile.net/proofs/artist/360c328b-6b8c-4cab-8937-4b78719ce2e3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Appalachian Spring: A Collection Of Beautiful Folk And Mountain Melodies
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 0xf6661167f75a79379daba839c3382a8fb17a4f623e92d48191a1f3908a2e5919. 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/USCGH0694573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c085167d6eecbf2ec299eab67fa06ab2878aa42405e6c58dd50b5c9cebdd495. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/USCGH0727216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec4d50d813ede9d3521979623d28f32ee5e85c56be7b8955e23fdc7a612b266. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/USCGH0727217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18b941096bc53a9424a3055e790a127f235aaa9d3ee8c0854d47158d1cbba51. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USCGH0727219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb9f43adf66be24b3e411a691ad2a75e7ebb52beba9ba39481c429ba32e77b3. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/USCGH0727222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x782f80a4062f14729e19d77e2c3885562a7a3b4e9e36245af534e6f6dc4e8fc1. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/USCGH0787464.
First Light - A Pete Huttlinger Christmas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7cc9423750a96017ad9e53b0ca5239b2ea8cf73ce0d1055ca3a60edbc8bb041. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/USY280768009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b67efe162de22f1d6513a9b512a1e83a5e323eadbbc76bb9c337d8ce893b760. Chain 2 (Bitcoin): anchored in block 957647 (2026-07-12T03:57:41Z), 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/USY280768018.
Fingerpicking Wonder: The Music Of Stevie Wonder
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79608dabb56d48fbec13523d197246b83ffaff4caea0764a3ef5e6cf0c08aa76. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/USCGH0991607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde2a6345d95ad639cfc63508ddfa96f8028ecc6b0e1a017bb958e91e8d154ab2. 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/USCGH0991608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d19b1d2aad3c87e5e16767fe060b91a3819234bcbaa8fc401ca6a30b31d95a. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USCGH0991613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe319d77668f0fc84e29ab28b9406951ceda34b53fda253b7bebe7b579d430c. 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/USCGH0991614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f85b223d47e0320241e91b0cb455605e00c9cf432da51bc4ce712f983dffb2. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/USCGH0991615.
A Quiet Revolution: 30 Years Of Windham Hill
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c72423265c55c3d2c53ae1ba9372d075203442b2f67df8a9b25b6e550a4501b. 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/USWH10400082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x173515d8c88baed4f290a06f09d2381a4cf4b9130f0f5103fd59c36e6c6575b1. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QZES51891305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61505e9358aed67d3391b9af0e8040f865e2b84b3249b850effd78e7638d79d6. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/QZES51891311.