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 0x8ec3c6a2d7f194602d664f7496da92d137589f106ca0ebca0cbc1d5d6125365f. 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/25bae051-30d6-4f8d-a9ce-04f957162321.json and https://artists.proofprofile.net/proofs/artist/25bae051-30d6-4f8d-a9ce-04f957162321.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 0x441ee4917266aea3426a207c42256671084cbc66f48d2c5971ab69ee6ef4ec8a. 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/CA6D22100774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde6bc90da77b0af81c186364c65c70b7fa2a86b2950c0397edef135116fd51a. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GBKQU2241867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd8e1545992a01d30b949a7a0cc9f9f43f7a002965790b601bb8e6d001b6d39d. 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/GBKQU2241868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ae7cab840060d38001a024908ed4691e2886a50b34b4346ca2aa830510f19d. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/CA6D22200273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b2e107caa0e637750a370fcc8ca29e5cb43f2f81e61fd509cecf19c48a91f30. 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/CA6D22200448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3e9c25fc154fcecbb15c91326c07a2722df761d8c249df314dd329a8795629. 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/CA6D22200449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa487a54de6bc05d75639c0a5962f7d40b1a625ede206c1d5b828c3d4ce69a268. 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/CA6D22200450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c032d41c55c5ad76a59b56964400d30168eeda73d0ff0ed675c6a9977c2c4f. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/CA6D22200451.
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 0x72bf07deda0d542964f36ce97b027b7e064c4baf8d09b9e17c93537a28bcbeba. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/NLD682201851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389e88a7885a6c470b5d33b2d8290c6ec9d24d2cdf3c5f49426eb324ed6062bb. 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/GBJAJ2201521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e92aa9ea091e809e232c7ea817de58331f3aee95bc34864e65054a9c6ed1a9. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:21:11Z), 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/GBJAJ2300834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3650734e7811e4d678d935df34473df507b8fffc98e8cbecc51abad3c10625ba. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/USA2P2333666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d81a60b6d3744d8284c1ddbda8bcb1ff49184313e02f6e7912550df2e89ca7. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/USA2P2340001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69a4b51b31460663630263fa3160c47415e0bd34a9f16a4a75237de92fdfcc5. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/CA6D22300433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f76e198a3473d134498312f81d6e0c618d90eb22d29bfefeabbda93ddbfe231. 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/USA2P2361669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e07387ebfc56d2c7f4122f64847b49d9a10b6566c431b6fb2f99f67adcadd84. 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/GBKQU2451351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7dd8eda7b392cf6965a13845a3e73c28e56f7532667e0b9ad33dd969a129f1. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/GBEWA2403850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc423b9729e32c5002cd51550e18caedcccfa19e1d502015d9d06a27497308fb7. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GBEWA2500633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c3eea61e05f5db265b36f896d2459f090bf7c7ea36bc9c19e6542844d24afa. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/GBEWA2500635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e6ac15a6e4eed35e2f2861f7605469e3c586876cfeba206afb657d7e19b16d. 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/GBKQU2514803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d999ee149ee4749a8fcbfe374177dd841d78d165161d95aa8ba94ca5f22c0b9. 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/NLD682403450.
Collide - Jody Wisternoff & James Grant Remix (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac1d566dda2ae141ff0cf5f8d805e87e4a23c445de69e648cab163ad8cf712b9. 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/GBEWA2301595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef904588606609f64b7983de00ceef7f62954afab6f9fc56566c2b1dba7da44. 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/GBEWA2301544.
Colorscapes Volume Three - Mixed by PRAANA, Matt Fax & Dezza
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf811d93737b8d6aac786b0f36d49eae4ff24f7e07f0824032c0515992133358d. 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/GBKQU2194005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb72bdb5d39c86ca452963be3d763313ddf02bc04b39176ec906e6c63b44ae36a. 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/GBEWA2402644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3a653fa3033e000030f71adc717208d20d553f2a6483fe3e7667ffe3cc6d06. 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/GBEWA2402646.
Colorscapes Volume Four - Mixed by PRAANA, Matt Fax and Estiva
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac981cbae544aaf5ac2b263c43538669de22780f6b3623fbff2738653f5bdbfc. 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/GBKQU2282618.
Collide - Jody Wisternoff & James Grant Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69fb78d042e932fa788ed8924d8863d408fae4b3426be763c005fb549fe5c36b. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/GBEWA2301535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58391ae6ce05395fd84aa42cdd7efcca9ef538b28c14ab54796ef62946410135. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/GBEWA2301537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86072185baee08be9cad0f179721f2a413ffb878e7e38366640365be1329d802. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/GBKQU2420877.
Colorscapes Volume Five - Mixed by PRAANA, Estiva & Klur
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25f0b70dba8c5fc78ae690528158c34ef9a3cd222b49f6ac93e7dd4a3440b56. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/GBKQU2379157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e2a335a0a442d2247577416642a8c1788533062a99922c26ce62da3748e2f3. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/GBLV62207858.