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 0x326a66b8f394f34fb8fe806c52cacb5a1f9330b0f84bfef0085e96b03eaf6c07. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ed26e516-dd0d-4481-9c8d-1033c253790e.json and https://artists.proofprofile.net/proofs/artist/ed26e516-dd0d-4481-9c8d-1033c253790e.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 0x8f1b878ad3d47b0b721073054f5f18d1d74ec78e375b4195e9f12ad95cefa624. 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/GBQLP2101321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe129060a4ce54472bbdd4c075f65949f4fe320364a7668fea918012fd998e55c. 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/GBQLP2101322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x242f32b911d4d25f4d622d6f3ee47e7342d19a266b5edc1b826678bb1c3926fa. 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/GBQLP2101330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaade2ad7c87da2c91db5796741ff223d805727fb009bc60f593b6030e5bd2d6f. 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/GBQLP2101331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d2bed50ffe10c4cb6ae34db1496861cda82c0cb5945c8fb22321244a63c77f. 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/GBQLP2101333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7285bb3f2455f0da05a2c3b796a0ebcf61e21a331efe6660ea8264b901e09f0. 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/GBQLP2101334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc8e9ac4df9e2a87c3556ace4c5376f90516f1301622b83a431df5c304399ba. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/GBQLP2101323.
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 0x3102ed7a9869e0eb7f44ec673e71a03414e1d623fc3d6798da8393b2150b1abc. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/GBQLP2101324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002baf4f271e4f42e666240b14f2ab94e4b29a20c32e37e7ef3c444eb6486125. 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/GBQLP2101326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84566f6ea072c642ba31853207a2266309055587a481735a8f041d58e3667c4a. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GBQLP2101327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2d1dfe1d94294f66614f08eb91f90f8070e29152132020eca4320736c9ba06. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/GBQLP2101328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963e4248d26fb1e9d7ec3f673ec140adbf51b532f4390912618ac130221c13c1. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBQLP2101332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7becf596ec08afeeb2242f880c47c459fc364b606442637801f39535a45acce4. 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/GBJU22100663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd697390ce447b44c9a6b0f16f326234c9bfbab84623d899fb6159d3d7dd3b4c. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBJU22100660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e0881d07a22a4b5ca8eb3dae39c42f797be6763769a6027f7eb50bc7998099. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBJU22100661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e65f87bb64f4dca435162130aeb234665317aabb44b62bf245319bae521c69. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/GBJU22100662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf174e7137ec087b5661ef0d0c3dadd68f8bdb5077980ff47e6820d75d0b9e96. 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/GBKQU2019041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bab15551f4231b3ecb43603abae741d172c5342ed2576f3c0d8343abf95fcbb. 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/GBKQU2019043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64cdaf434956c0e6dbbef5e8421dd5ae71057a49de6a88c00162bfb89f9e5ad8. 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/GBQLP1901136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ca74ef4baa2b136c55873d0264776dca958a35315f1daaeb3886d2b29826cd. 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/GBQLP1901137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf48c7486809ee91eaec9e461473e1669377fa933b2fdd5438ee72d5362a0b2. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBQLP1901135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958789023201193e59a6f0a343411ddd3536df94be08967e252b09aaa919f1d3. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/GBQLP1901138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717c5e3c164a399ccd2992015a8ae3826cb1a78efd89b281a874c0714f1a4cf4. 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/DEG931850835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83f9dab37015681c6a043d6f9fa71e5b1d7172b690dbbe27fe1c1f0f91bd00a3. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/DEG931850834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3404c3fe7fb226ad6ba77dea886d0eeafb963140705d332ad8ff6e1fb1d2dd5. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/DEG931850836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e25eadbd440fbf52c81703a5b6780f65a3e7e549cc4742ac53faad355f98d7e. 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/GBQLP1800514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059825d50f096a52b8ba2248cddf1739807c85e4879d0c0603079f60be44234e. 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/GBQLP1800512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4f3056a0bfb28bf1987e062e2096bd12b0c66ab27f37633ed923e450f87078. 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/UK59G1600050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c4aca48812b6bd89dd6c3f34e6358589c3c2038e2ed536d27ccc9356f77dee. 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/UK59G1600051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce4b7c38f25b798d5cb2b745ecc66b8458f1f6ee32f88ce79b31a8f36ba1f6a1. 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/GBQLP1600858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2085c02a3634f08c5bcbdd6d654013047e5d2aa773824ad88890e7404d3262d8. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/GBQLP1600856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543e75eb8185c3929058d63ca3e092f13a15b63918d6e7bb756305a9a7b305f0. 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/UKDFK1650011.
Exit Planet Earth - Launch (Selected and Compiled by Ralph Lawson)