right|thumb|Marshal Zhang Zuolin, one of many warlords in early 20th-century China Warlords are individuals who exercise military, economic, and political control over a region, often one without a st
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 0xcf044d4df87cb2257bc9bdadbf8d17f08811b5a0fceada42db38dc87d18e17cd. 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/122684b3-a7d3-4728-afe1-c786aca62885.json and https://artists.proofprofile.net/proofs/artist/122684b3-a7d3-4728-afe1-c786aca62885.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 0xac5b9b8b3eba57b3c588eacc2a8e82a0cdacdb668ae76c2966fb826a59dac63d. 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/GB4J92107501.
Hunt For Damien - Warlord Classics Re-Recorded
...And The Cannons Of Destruction Have Begun
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x605caa19464300d0db8fbe42531ea022c0ef236d7d82c1701ca28c423fcef745. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/GB4J92107303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff236077c59e68ffdf0d3b7fe79aaa6a06986b36d9f3fa83716d747cc2a41255. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/GB4J92107305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe065e7ed01a55999314aa5453c1a3c6132318f9e4463fb659caa9d33ab14f474. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/GB4J92107307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c93c3dbd13fb2bd4b726862df99669e7c8da871228f1308625ca50a19afba7f. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/GB4J92107207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb2c7486a39817fc97405e48efa641eaa39ea53b81c9beab67b119163c071da. 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/GB4J92107208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c3a190a37c1313cd911ea7e447ca04e7ba83daa4f6bb42b0a4f5523349458c. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GB4J92107209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d6b3b960de9e36ba1f61f48234660f4a964e2b6202d536c20170a1f1b0b5c01. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GB4J92107401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f65eeae89c4d7037ae33069104f0fd875d6838722f8a722644853774835b9f. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/DEQN42400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4b716975e9a994acf9a23bd884d54b572f053af60b13bb1500ba694401bb21. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/DEQN42400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9879a74d38315b52a25ff056db48ee9502e037cf3fbfc0cd6f1874aaff248e15. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T03:26:44Z), 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/DEQN42400032.
From the Ashes to the Archives - The Hot Pursuit Continues
Golgotha (The Place of the Skull) - 2024 Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a963dd1df2584f9a2b240944864d7a02f03d971231bb5402ca462f6d60ceff. 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/DEQN42400133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474949a52ccad2dba038c70e28545ca732ae69716eb7a171f46150a1e3cccafb. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/DEQN42400134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c66907b6dd2c28dc7bf573ff91c56acb8a18c2be726add6b19232e8f97e3f6. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/DEQN42400135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x574c12532c15cd01255900efe31be8f861f1648bfbdc26873f6999fa17d4cc70. 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/DEQN42400136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940c6cc16b5d3de2200b110b47f6205ec49c9b6b868b186a1a07b21b4ea284e7. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:01:06Z), 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/DEQN42500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7888b9286205de65c115b1fdafa9825a133b39541f6ffdb757567e57b8007f6f. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:18:07Z), 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/DEQN42500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa359352911ffb23388870f8d31118c4fd57a0f89594dd5965d35e9cf9eb0fb2a. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/DEQN42500031.