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 0xc2da490aea269306152047755e9d4e32b3398a323ff58f033d3928c7506493d5. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/515e96f7-cfe6-46af-be9e-123759bb9ed4.json and https://artists.proofprofile.net/proofs/artist/515e96f7-cfe6-46af-be9e-123759bb9ed4.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 0x11b3c54ecdc5fe44de0958473b18a7068162bc76960f42b0458aa771a0796668. 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/QZAWC1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1cde259f70133916fbbdae7134ecf8a7ed1321c5cb0f2feeac96b32ba94fe78. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QZAWC1700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79742443011284fb061ba838159bc269be118fad9f0542d799cf5474a2e74ec. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/QZAWC1700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3df940226f8f2951a69b27fe7034b2dccdd2053e0bec95b6ca4c6f2d479736. 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/QZAWC1700101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069ff784cc6b115449cc8af60bfe18fc2de683b250d72e9d899d9084b1cc2c79. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:33:14Z), 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/QZNWR2028369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf465e58b7f867a725193270d26d78f4e2a23bfeb827c9f12e35d942101a24bb5. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZDA62164501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f09e48f429fd7f3db6b2a6a1c12e3b5ed18f32dd58f50f8991a2f01762467e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZMEM2131215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748fd6d461e0fd1cf330ad45634fa26e2b1840657eb5fc6386f2d6162ba00dd1. 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/QZMEM2131216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d4984c29118db258cfc9637efbd37948d539b880ee4a3e05dc5fe1e1b8a2d38. 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/QZMEM2131217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bba61c6c686e605894ad4b51610cfc52eefce915de28694f249af0bb1ea78fc. 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/QZMEM2131218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc70d65316f23f17245793b8722d1f8721b2a65caba8f499bfc99730bdf1161. 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/QZMEM2131219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1d973b593f0070fc651c2f0c6e0321f9aa41f8da5f5498763bca03ab01dff8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZMEM2131220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8755e8cb3d1bd78c91701a62a60ddb9e7d7ef6215e9ec6abe93a533e5907cc98. 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/QZMEM2131221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06dd31e6cacfc981e8a7136672a8f6ab20a19c16d3ed6bb2e0cda704e7ee49a2. 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/QZMEM2131222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916c83457ca65a2edc6d9ae0fc21286ebd92bddfe4ed01440e55a1a212227b5b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZMEM2131224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x429f16032fb02bac8efb2ed7dd4561c4773558b936c4a67bad33dec703b03ff3. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZMEM2131225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x505b72555d529068b4e097287059c652413026fa4c9cc5a1c4925784c46a7b51. 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/QZMEM2131226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a496dcdd7964fb222e02a75fdf322274b7ecaa301e8d1e79ddc13aeb72aed7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZMEM2131227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f894f1020f07628f8b7acdb186f064d6d9496fc856aa4c12e177f28bdd3159a. 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/QZMEM2131223.
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 0x5726e960f70a7e9c10a9b2366282cf8366a51ad9b0e7eefcc378b482652e160c. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZDA72211541.
Kyle Smith (Live at Sugarshack Sessions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93d5fe11de54ba785517453ea43693f191fe00c05fa14da05995e0087739c3e3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USLZJ2237564.
Tables Have Turned - Live at Sugarshack Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15df3fd5c02140c1c24fa65833dc6f46293e5a440dde818f01826b89bad5e20a. 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/USLZJ2237565.
Just Like Them - Live at Sugarshack Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c3d901786d75a898e3b7aa634eea711e2f43dfa982267d994c1a10dbb0cf30. 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/USLZJ2237566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a2ffd628eb683512ac52afb6805bb28d7599b0b1ffbbf2451b053888d8a8abf. 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/USLZJ2237568.
Party's Over - Live at Sugarshack Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e752416beea13e89a614c2a648cb77e853aac890de30766fe2cf670a68a70d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USLZJ2237569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3db5612e1d584a6dd43da7f967231c0e080a994074f905bb46d849d713e19d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USLZJ2237570.
Keepin' Me Alive - Live at Sugarshack Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53193d1e5ff2af1c885e507d60b07ea336bea4d04cd59c6eec02de059f7b3d25. 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/USLZJ2237567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa644372f7566f99d694c64dcc6cb147bcf5f392af314d4792840b5fdb4587f10. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZK6F2262065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac4e49e9680deb0dd760f76b97a14b0624cccec3ab741aa231f6079e5277232a. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZTB52294496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9672bbd8c9b3393aabf8e3ae2ff05ff21dc73ebad242d6a13ea20de727d38925. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZK6G2324213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76058fb52ba5fd78b122fc9af864f7d9de664c44214534c962455f1f3bbed608. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZTAX2487314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38eb1aa6fd581721b47c357a7feb01f5296f902fae7b9c3c59fbedad7bb4d7a. 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/QZWFP2479816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03eb8c081ea92694c9e6d79cf0ab90f41169d4d68a98eee6b94aa8a7ecd53ddb. Chain 2 (Bitcoin): anchored in block 957827 (2026-07-13T08:59:54Z), 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/QZWFR2447619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b0d9ffe8b9e1e637c55ec78aa2d44d5c0102890fc7a16b79d04ab3a9abf279. 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/QZWFR2447620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x435e6a9e8032c6ea84816102dbd52b6e75e874648c449e3b625822c63d52afa8. 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/QZWFR2447623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b83dcc084758e34ac094caa63419800e81656854281a6544ea1d03a92ef75ff. Chain 2 (Bitcoin): anchored in block 957868 (2026-07-13T14:56:55Z), 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/QZWFR2447624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6cd685fc70a0c796f8c70978635a3a7d5d4d19e11fda24d8d996992d0ecdc34. 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/QZWFR2447626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf172a9ec0313000314a3147c80696d6f285d0851889dcee972a15595488101ab. Chain 2 (Bitcoin): anchored in block 957868 (2026-07-13T14:56:55Z), 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/QZWFR2447627.
Sugarshack Cover Compilation Vol. 2 (Live at Sugarshack Sessions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18226e734e9bfb6d8ae7de8ec3f3243f2af18c90824c79e92aee892d5e08a871. 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/QZWDE2257944.
The House That Bradley Built (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b78bf29a4423a6545887ed90cd545749ef8e2d5c14f32b248f3df5e35a6251. 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/QMBZ92041532.