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 0xa70ac66342be09e4eef04e0db9c70e3278f3fd3cb7c10e77590117de7d6b47af. 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/add476bf-9768-4bc6-a472-83bdd2cc5650.json and https://artists.proofprofile.net/proofs/artist/add476bf-9768-4bc6-a472-83bdd2cc5650.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 0x36a7d64a7b617db09ae0da1e0d424b9081c61e31b9c163e1d2475b36fa2ca717. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:48:30Z), 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/TCACH1564496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15abc50b453a10f71bee49b9d1a677cc8fd47eca22f5cf6c3817264e1d946253. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:01:08Z), 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/TCACJ1572693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c2c4957a6a2402a869610863cb63b54bfaae4e4a1bfee2dca122feafb3f9f3a. 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/TCACJ1572705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4787ae38f4b70f24e7473f3d8b088e11c9295a9f78e8c0e902dbb2c0db257ef. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/TCADG1726159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff7d37bd6f4b30a75ac41810a23cfaa56bb00b93b3b1065939ccc43c9cff0164. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/TCADG1726164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e8b66143a0b9369a6b1559388455e47f30936bd9bcb466603c486862d2040f. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCADG1726167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b012f06507e1e397e916260054444bb06dba61806dda106d9668db2b7d1553. 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/TCADG1726168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bab9963960102c0527e829036fb87a444f1d480aa62eb6fbc948563323d454c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCADG1726171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6c5671f11045158cf2df2dd9b6c6dacd160e732e70f0ac70046b3e6678de59. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/TCADG1726173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64f9e5fae7d0469cf04586ade07308fdc2b8e28aba698e3eff06fde14d019ca. 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/QM9AA1829120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cf02885ec034fb837680a9494c4d4af32ebe364d43013d125ddad1f93c5a321. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QM9AA1829128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbafb19ea8ba59e165c5c32c12e48169b681cecde2e463037faf0e42472b33a01. 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/QMD3Y2200544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c5711e206b4c2b3ca60a871aed88976cb076492b877c6f41fce9f092048fc4. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QMD3Y2200546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba7a496f4e8bd93fc9bf28002c175fb2b9e5c9246ce49ba959f855e3528b26ec. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:47:22Z), 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/QMD3Y2200548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42fe79c09083bd63dc9f1ea07558b6d8b35dd93193aec9aa06a75fc11c59453e. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/QMD3Y2200551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfeb7c131d9dad35bc79b2892892119632188b395f96588cf8603afc566e2190. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:05:57Z), 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/QMD3Y2200552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac83583cf7cb96014d41e4730c7226cb3290720900972cdd7af4dc39baeefe6. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QMD3Y2200553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x980ebf64c6af8924ae2fe2e5c29f193dc2a868ff15ca8d65a2bce323eccaffea. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QMD3Y2200554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf69d29c033f7b35fd2630d17a5f5988aa7d85ffb607411ffc641902062a611. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/QMD3Y2500202.
I Need Thee Every Hour (If We Ever Needed the Lord Before)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb7ecb94325d207291c94b1fe7ce4796baea6191a661d90ed49c028a9126f32f. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T06:58:58Z), 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/QMD3Y2500205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b9d6519d037d0e9246e217295506b15c951d29a2da245de3b589862a8138525. 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/QMD3Y2500206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f2651426666e18e9a65dd80085f49de2f6394be9ad6a547e11aa28d72cdfc9e. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QMD3Y2500207.
I Will Praise Him (Hallelujia Praise the Lamb)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd4a060f326b235f76742f4ac178469a3a466b421934717df0c1f5f397fb15c. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/QMD3Y2500209.