Gary Puckett & The Union Gap (initially credited as The Union Gap featuring Gary Puckett) was an American pop rock group active in the late 1960s. The group, formed by Gary Puckett, Gary "Mutha" Withe
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 0x040a26a3e9099a04b44b46d30843ea0d8acf6821c5ec2d46073fe5ef91a8f38b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99711a26-e7b9-40cd-9315-868bbdf7dd1d.json and https://artists.proofprofile.net/proofs/artist/99711a26-e7b9-40cd-9315-868bbdf7dd1d.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 0xf7d5e8dc5f480fb0c833ce986c6ee2979f0366c43a5b6f8b000e83ebd6a86740. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USSM11307717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20fecf9837ec3b48744ed33abb970456002edc638445e7577c8c2d774422b002. 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/USSM16801072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ca441d401270a7e11eec060def19d485eb3d15cff1498335efb7c64c66aec0. 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/USSM16801074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5813e7c6e3614e11a83317523e9fcfd44a0ccc0a3d2576d6abec95dc41b60dcf. 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/USSM10405721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94be13de69956376470a8d33391b89c1b26e9b4d2657b750b032c88e968d08ec. 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/USSM10400926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c2c801d9ac1390f54ee2691c8c88dee63bd25186addb5be3449737f0ae8c5c. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:28:58Z), 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/USSM10405720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x229a8986cf6d996e2d94d4cc0f68464c7334fb6010cb35a098341ea4e654e765. 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/USSM16801073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a0f2c67d3b538cde119beb3839eb7b74a6d5ff347afe6a67551e62c5fd0778. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:07:14Z), 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/USSM10405885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe071bea7977151659a55ed06e8eb81ac53c2d779719c8ae532e2b270bbc0a9. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-20T00:23:37Z), 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/USSM10400927.
Gary Puckett & The Union Gap Featuring "Young Girl"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26305919ff33ed1634160506bf5e95bafec9d76c3fd93746fb6d964db6f271e7. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/USSM10400919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1028e2a5d3b16b85efe4e0254e7f753b5b0f560f34d3aaf746cd729a937f4a0. 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/USSM10400923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fcd883598b447c730f00248ba5d5d44f9196f36a397b657dcc13b7f8ca43eb8. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USSM10400925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c1837bde1b2cef48579d5bdf878d42c3bc1e61d9f7295bd0fdce4dff83bfc0. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/USSM10025633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f9abb6328d95154bd1e16200118bba4417d04f015e2ce69253698bb133cb75. 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/USSM10025839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb02f190fb9b7b20d7a426739c565514aa183417eb9921d0c09d299988a6be2f0. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/USSM10025837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2a6d9458625eb70dc813b4970268cca98815d6293463c50282e7ee03c3f7cd. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USSM10026525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2591d06c8db91268fe4336b449d5fea39baaf81adad15a87da900241f19181ae. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T07:55:31Z), 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/USSM10025838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb98c7f72831b736e6a80b6321874c0a83480b21dba527947ad0b7cde5b731e5d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USSM10025833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x648c38df5ecebfff77d1eba09c4dbdf3c87aab78d00c1e39ffbe964220e6d932. 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/USSM10025834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a577e4d515701ad7e7b0e076c86b807cdd8ed4c485b2e7457873e6759afdec. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/USSM19900191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd560e393a288213aa07e3fe888f7cdd30f381cd740b6b71a34f705c58d5ff2. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USSM10025836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4895d0df6861e67e931a4ea49c2b8780bd58309edee107d3aee06ac0b8cd99fa. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/USSM10020776.
Young Girl: The Best Of Gary Puckett & The Union Gap
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47715cb1794c921e89e986978e708e80ea862b8d43ead7ac7b5c7de08d9a17e9. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:16:19Z), 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/USSM10402355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f43ee896557fb4ba3a739b57b8e600515a30de443983aaba8624e0ec3bfbcfb. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USSM16900811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ca40677e9a709eeb769183bfad5148741ff6f7158196fbbf9bcb5b41f43ce6. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USSM10402359.
Young Girl (Performed live on The Ed Sullivan Show/1968)
I Just Don't Know What to Do With Myself
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aadcc20c1ff24221657de4d79cc59347654babe4b08e2b700e9367f4378773c. 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/GBQRF1113011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8abf92630bfedbf6642417088b4a25d2412861406ebe15436ce662b8003bd979. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBQRF1113008.
The New Gary Puckett & The Union Gap Album
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7203b268d29ae077fb58946179bdb2abe4267b69b716701b3388415143c5c8b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USSM10703971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79165a321ef0547c58e8429e3bb3d5e26e9a287cfd9677cb25534c4eb4c7bc5e. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:26:43Z), 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/USSM10703970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b9ce683f1d12866107cbbd37c8f56e017998f56508b69de8ec672013961502. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USSM10703973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a577e4d515701ad7e7b0e076c86b807cdd8ed4c485b2e7457873e6759afdec. 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/USSM19900191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0badec596a50c7d0ba127c3d0b47835932ad6526d23037aeaeb78822527d72. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USSM10500674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e692251f94e76af5cabc828e3c1757e4653d7f07bdaff4091c996a7a9f39e69. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/USSM10024741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9ebf33ffe50a52a5440da4af7b4f3575d4e8b187f2eab561c8f6358823d69f. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/USSM10703974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf495063fb48c5d1160d2e340463d7dc826000a01519b6182892438df0d85616e. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:18:54Z), 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/USSM10407453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b72a16e09fff8ef0bee90ad38ca43071bda26b3796f873147371afb22b67179. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USSM10407458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42160ecaa909b917a340ce655d08868f7cf7898e6fed5097b0944eadd4a61795. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USSM16801071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42160ecaa909b917a340ce655d08868f7cf7898e6fed5097b0944eadd4a61795. 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/USSM16801071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4640d41ac6bdf5887324e85268dab46e4c8445907da72260b7f961e60b1cd87b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBQRF1112999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca01eddf7632a728008e0a1e18dc39d618f7013790ee07d6e0dd5f6163625713. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USSM16801017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42160ecaa909b917a340ce655d08868f7cf7898e6fed5097b0944eadd4a61795. 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/USSM16801071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd002da4d0c63f61103a9ac8b857eba0cfd82d85f5bf461dfe2c5c402dec5fc. 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/USDEI7701350.
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 0xa22c79ca70c6f66cdd3c78d28854893b8a61d13ea967363b9643ffbb140b1aeb. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USSM10400918.