Weldon Jonathan Irvine Jr. (October 27, 1943 – April 9, 2002), also known as Master Wel, was an American composer, playwright, poet, pianist, organist, and keyboardist. thumb|alt=Irvine in 1977|Irvine
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 0x542b12f491973120276cc5c5dbc3969ea051b4f7d483209f12a45cd8ea42b62c. 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/47de632e-cbc3-45de-8932-7d64e4ca3c67.json and https://artists.proofprofile.net/proofs/artist/47de632e-cbc3-45de-8932-7d64e4ca3c67.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 0xce368ec77a858d4d3c915fffa8741eb39d66768109b288cd6f16bb02aea5a64c. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/JPV502300088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b80f7285a9869a0eaab2a466542dda679ef6b4a5b19869e0ec0c3e7d4eb200a. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), 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/JPV502300092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024f97d91d3ea9208ec6a8ef8172f654d628c4359474491794e724d7ce4a80f2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/JPV502300097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x736b33a8b0d13de31dcc514ca2e76e01ae2a5443544161f475ea360c029e0949. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:29:18Z), 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/JPV502300103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32dc7cdf3eace63bf12487f438f27ad2020069693e8dd8e2b828378ba86ac0f8. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USRC10401962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe468b065aeb46c2f8d8a503065ec64d739b05cc8a3917b983013625ba2ba6cd2. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T19:00:56Z), 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/USRC10401963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2cd39d506e34ef94737b2baf5e1a1b3986887a793b726b73506e123d71795a6. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/USRC17407650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd28541bbf88397ac0c571af8881169d9484fc227b7b230d8b29b4a3b832bcda3. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USRC17507721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a38807c138a204664c6121adfb919896bb1faaf72f85594b97457836c72ada. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:24:26Z), 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/USRC17507722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8108417a0164750c7191402b48c62628e487de2e19bc6a6b5eba721cd7900e80. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:11:06Z), 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/USRC17507725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1241b5ce92257741b2d49ec5287f3ee8ef617f97c4ae8dcbe8295410841f980. 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/USRC17507726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497c51a546c08df1c50651b0a6eba91c353cda1e523dbe0fb09249aa4eab48b3. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:07:49Z), 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/JPV502400335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14585d765c4b36eb07a1ae4aa7dfceb806abba142a42958dc81b9eed4a9a38ad. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USHKR0980801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54a443bf46fffecd73e182892c59dd6da0e4d49745de25e2bb02b6f38e9203f2. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USHKR0980802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd400cf24da4ca804a9de982fc7fde3d2d5584ca27eab753e617f9562b3d786e0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USHKR0980803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6757d471caf49a61003fe82431d0b270c1273a6fb18cdc3c2c8363b348edec27. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USHKR0980806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf80a8041da9c3671789b703cd0391557114080c84d10ed971e4503f5120498af. Chain 2 (Bitcoin): anchored in block 958495 (2026-07-18T04:39:02Z), 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/USHKR0980807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c83dd0b5aabd3f7ab60ac1e6411009e39a46f80b6dee92c974d8da74d9bab48. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/USHKR0980808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cda2e2e5bc2ebb62edeb12feff0ed28ad686ff52af56c598aacdfeaa7e06a1d. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:47:05Z), 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/USHKR0980809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6143abf0f7062a139aca6cbfc2f1194e352dd8ed121b328d70638614be1fc044. 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/USHKR0982402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcaff3f1b3a9b38894fbe37ddfc966583c91e409408be7736b43764e548cbd78. 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/GBCCH0100036.