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 0x699f616bf2dee46c6155d89bbb6a9325d61a00d893737b235c0ddddeb7af0f7e. 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/012937fa-7b05-4ea8-8bde-93a12f09a855.json and https://artists.proofprofile.net/proofs/artist/012937fa-7b05-4ea8-8bde-93a12f09a855.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 0x8a0c2ffa607eb97969dfbf65cf6943bcb29491fa66e5431c7aaad6e998ddef1d. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:44:05Z), 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/QZDA81818083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e83d3da02b11a2349be54729776c4d1c88e3d1e591506739779a483bda09e41. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T04:11:52Z), 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/QZHNB1900566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ffb3050034c8a00445b6ecd0a01176cf80a626fb9b8202debb930f89a63fb92. 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/QZFYY2013657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75eaacc3970d77c4d85d5a447f4bea0cd7f3b748f26b533d0f23571a96cd04f1. 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/QZFZ22018425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8016b41cac737b510b2cce4b877d08ca39d57aab738d57809b7aaad4c6f7884. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZES52059621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b90b8adf2a04b50f452c8e6af3be2dffb201d036baa76c0d438ff4ec014f34. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZES52059622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea249986d774d414a1520dc6c96bf31c7940e0c2ce60a1900ed90c3751831537. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZES52059625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e2f59423464609f70bdaeea336ba49be19628749c17e6b0b3ddb84685da6ff. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QZES52059626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9504f974269439744aaa8d8c453038000a830f880fb2834656202250b63d85b. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:03:20Z), 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/QZMEQ2070573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d7d3ebb269ea0e617c637e2bb5f543d2de664f27d6d3811a8e4d73b92fcfb3a. Chain 2 (Bitcoin): anchored in block 957752 (2026-07-12T20:53:32Z), 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/QZDA72152915.
The Invocation of Cxxlion: The 73rd Demon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f007f07cbac137142e541a7203040ef4b9f60d6b28ebf0cf0d1079d0821365a. 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/QZES62159943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf557a9e5fbccc86f3fa232d01e69ac5385213a4c28f48464060dc7ab58f7ef48. 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/QZHN72141189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ddc691b9e790de09ad6e3b85985e09301c68699b03f4e757bab8c1a33da40a0. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZHN32298567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04967bfd73a7e4de48f765ea4dc9139025eb44397467e836de29663f7aaa7758. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZN882244013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6505fddea96b9519b1692f061bb359f3317ebf0995155febc7a966d17edcc03c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/UKZGC2203189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed1f9b6d3a31963143d7f65f24ad7cc72d94c595fb0b8a3b5daebd7f67e7731. 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/QZHN32148994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc577a2cd99b1acfcdefbf0a6ddae917c969b19ef3c8d34411487b19ed6aeb242. 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/QZDA62413430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04d9735dae43c904f4208923efc728d3c1c36983080634cc7372b2d2c6a3235. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/QZDA42163612.
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 0x7f4e4186fb917e31e9e8f7603ecc22255ee1dd0468cef216a5779a54c436d545. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QZHN32148996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc26a374f7d7a51fdde41ac673bde73f1c862fff1e9e63b858d26fda276d838. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/QZK6G2010045.