thumb | right | alt=A landscape image showing a view from southeast of the Beracah valley, featuring a building surrounded by greenery and hills, relevant to the historical and biblical significance
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 0xa3ad75735ffb700c78bf5ff75c8aaab9c5dc99d47f2ef1ef79d1328c5f2321fd. 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/9e49bb6f-c4ef-4fd9-ae50-8870f1c1d3fc.json and https://artists.proofprofile.net/proofs/artist/9e49bb6f-c4ef-4fd9-ae50-8870f1c1d3fc.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 0xff1e83018ff7a43ab9ab821c5e6c1a02054d3576c546396f53c195f1954637af. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/QZFZ42061070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x236e9470d47de273e2fc0ff2818c81bc13f85298e6948b74bf8e64aadae70293. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/QZFZ42061072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda77c5e55b29686bb4e4243b94d0c3dda1be49de96645a013c47c8696462e070. 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/QZFZ42061073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x798079d780345ec5814b5c09fbbdae292ac970982696f926ce605d93599b811f. 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/QZHN42039972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4adf97413533d08d5629d837325e9290ebe305e57758bc4089c1aeaa9bf3cd40. 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/QZHN42039973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf01d9614891b953172d376ab9d5d92ff6dfcfd08e6a713f9e9a836c55c9b3eed. 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/QZNWU2046306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f02461dc65598286d6ee7c5cb01b84ce6f8aff09a3d28ac8743f02e154bfdb. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/QZHN42135541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a19c8fdc55ea4bdcb1445c1077fec21b42a31772504602db7783b2b9d3ab91c. 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/QZNWS2178155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2bb0a2469d5df85144e9327032a3cb275ec82a75ee9698411dd863f6096674e. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/QZNWY2102865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b8003eef884819c846ffa1d3c5916e5c712c580c092ac94ac83cd595c61228. 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/QZNWY2102866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ea27b2434f6c97e98ea844cf26917ef2445c678f82b3476e6dddad41db65a6. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/QZNWY2102867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c169cfa41660a54b42ee9bd99aeebd91c525cad748e18afab513306d8621de. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZHN52293252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6be2e540c2a9308d7858cc50f14f894342357e613842a9a58ee99b86b2eb5323. 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/QZNJY2536841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437cda295f2e75674c4f24e53920819838ec487278c78098b946fbdd4e64ebbd. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/QZNJY2536842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32938060013ac9788a7a2d3b4872c3af27562d7ba501b55a04501edf37482764. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/QZNJY2536843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c6268bfd56992e24f36010d3363a7b05f7a548414ef8bf6cee8b7e970289d0. 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/UKXN22131673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e6bb28624d6c1165c8c07dc84d1e33c3c0bf205da486f0314addcaf47aa8ba. 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/QZNWY2420519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976e1946905f507336dcb55e82e7ecf5c318de728d69c33fff791fc50525ef37. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZTB62291202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x858621c596b12659b58517628510c418309bd5031e5f9fddb20cbbd92a99b044. 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/QZTB62291203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b71a8b68cc1c744796534eb825bd8fc867c0d8d779ca8a20bcb67f68993436f. 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/QZTB62291204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514e931483d5475a4cdac75943212b79f8ff4f3d9a35164412e7e5dca69dce1a. 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/QZTB62291205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e10393922d1511deb17365025f1dd4d816282debfd634eba2fee8ba5030e0d. 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/QZTB62291206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad77e31baa7ce6e35365656f8229f7d661f5728942c03647c7b73d5f74d341a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZNWY2257702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb091dd4df3f71a2014c51ac3e5fc9dd1a3aec8c495615a6fe0396a8368ce7930. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZTB62291207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad77e31baa7ce6e35365656f8229f7d661f5728942c03647c7b73d5f74d341a. 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/QZNWY2257702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6c5ccd653c34eede7e4e0be7b1cdc77d0fe63403a1695a14232d7c0deb70cb. 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/QZTBA2417250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f99e6783b88aa02a1e1efa7a2c19b6df060424867cb322fb455879c98b347a7. 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/QZHNC2090536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x948a52abf6ba148842b38f881406319907b0e12c665c34edcefe248d967ee2ec. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZK6F2207016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a112b4cdc29f2491a60f59a099d37310d6359ebf950c370fbb3801354480975. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/UKXN22287124.