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 0xd2f72993366606657bfa258ca04556132d338b301c095a865defb0f775e99c29. 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/43c58f76-1569-4b07-8d1a-22614284b9aa.json and https://artists.proofprofile.net/proofs/artist/43c58f76-1569-4b07-8d1a-22614284b9aa.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 0x133dae20848dcf63cc634c33f1ce8fd119a624f8826d8c25c6e2a67ae41d6465. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/UK8AR1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42e362c6c6c68126ef3482985598316a255ed7f179b015fe1f2ff7170a447be. 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/UK8AR1900002.
Still I Will Praise [Live at Burgess Barn] [Radio Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c26ba47b720ce18300806df025703781c02eb5e72806a38359569e4e435d6e. 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/UK8AR1900008.
Don't Hide [Radio Edit] (Live at Burgess Barn)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b9136bce40349ba2c6c364e08c2c0100828748c953c358108d5b591e940a93. 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/UK8AR2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530e342f3ed7c7a2b9cd9f566904f6af8a531bd0bb0af236bbd835246a79bf44. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T01:02:41Z), 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/UK8AR2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea44c814e0b220afdd23421dacd8f13a735130e4edd1ed01d073716db903214. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:21:34Z), 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/US25L2300265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d584341b204fb8dee6bae761668726c0bd38de13da95b0f0610d9e24e800a1. 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/US25L2500080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69982489e07611f5ced45c5170758b6affd877542df5d72ba642f1e84499982c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/US25L2500107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9848ad39fda82137a10081995b4380de7c823db620f306b53eab8a16be38caa6. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/US25L2500108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d584341b204fb8dee6bae761668726c0bd38de13da95b0f0610d9e24e800a1. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/US25L2500080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0359840aec3d71d5d263a06e9f5e3e46777c1a8daa79c3971a0644c4ddb7fb52. 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/US25L2500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc90d3e807e428b02d13852a36e2b15a92fe0755aba6a7d4ba82282174b5df9b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/US25L2500109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de397d7e5f508eced2d5fdf871a626f6a5579e742241947a4561239d45490c7. 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/US25L2200327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260d36ac93b20ab734c85268af742c6973e21c0e2b5e0c458ca1b64b1d7d3b90. 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/GBLFP1865007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f6082518ff390ac0caaf532f71a0e5a785db941e925f20defeaf09fcd858cd. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US25L2200239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f6082518ff390ac0caaf532f71a0e5a785db941e925f20defeaf09fcd858cd. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/US25L2200239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ce4f25c9ef45e5462f987a0165b5abe576cbf091cefb86062fa4d5f58de17f. 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/US25L2200411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f6082518ff390ac0caaf532f71a0e5a785db941e925f20defeaf09fcd858cd. 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/US25L2200239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d80ec1fcd169a8332e8efb6193353c963f6de631b464d36cfda717ff0bfd392. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/UKF9B1600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57bab0f0917c70278c4e43165525eca9e7d7463d740770ebce7ac3d4052e0708. 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/US25L2200380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3a363e3f0f702d51e48cf5862200b3691f640ab85d1d766f622ea0ba1c9e2e. 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/US25L2200383.
Gratitude: 10 Live Worship Songs From Spring Harvest 2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f82385f80a72112a6b3fdb66f9e7102d2c87af7dc68fbff8b83833aad4ad909. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/GBDPR2206625.
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 0x5741698d5d449d1b098c580be3a458c4eaa5d046221e32d3c5bad80f5b17084c. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/GBDPR2206622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069eb46b8f90840597afc68002eab8d6cb4bef07d8f8626da578983b1dbc6255. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/UKF9B1600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5722f21b811198003724dd158df7981ee9bf456758519c0ecd6cd6b9dd25e37. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/UKF9B1900008.