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 0x2f3e94a392a91b6fcf232721a0496566cfa3576d1434c63af9a01c9bab60cd69. 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/7871048c-35b3-4fd6-add1-f5972793b03f.json and https://artists.proofprofile.net/proofs/artist/7871048c-35b3-4fd6-add1-f5972793b03f.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 0x6fb3dba2257a622d601e28f3e174594fa3c07adcb3b5e5b67abb0f69c22bf438. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZK6N2447245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41d6a814ad75ad694bd2bf7e8dd521c5154458bf829d2bf1ff00e7efb1472da. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZDA52173780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5db3bed2fa7c0e8a85c17f566cff34957245379d22b14088ecfc1f219c857e. 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/QZK6P2037492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x011922de2f9f9996711088dcc4e3e35c783751f6c68aaa16e22e720287102194. 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/QZFYZ1947788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56c684a9a7570c24d7d7767ab786725d2641393e20af18e40c197f25779adc87. 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/QZAPG1855125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa45bd87d071402c1454345031ca0543dd412351d7c8fb39f80c75e088110ab6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UST8K1787511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414c249c8b72384814d32b0587b61259c463fe8047198e9b785b9d0af47dca6e. 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/TCACR1613002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa900d2748e7929c2047f56ceac9605edbb31ce6197e4d50110108a68bf86d811. 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/QMPKX1749816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59f822ab64f57c3ff8e7fba3bbd8c4935a766a7ee1cb2e54ae713bc3eb2ea1b3. 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/QMPKX1730821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9492e4dfb2c2ac82c4c144e5ed14f219be477a7802d172fc94022abc86653000. 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/TCACZ1761841.
Gemini Project (Dark Slowburn Spectacle)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e87335c7fbee3fa248cb4465fdbc545468ba838add1209a4dcd816f1a35360. 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/DEWK51900272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f3e0b5aa014d7732c103981ef4209647c30a7e9477ec48a506bc75b926b666. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEWK51900269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b576ade552cd749f9677088edc18904fe9a9660d5fac85c0b31edd444bd2eeb. 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/DEWK51900287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90fe70f7e52a7b376be5b9ed1d640baa4ef0fd68b4bfc11563487503a2777234. 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/DEWK51900290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad682fdd15ffcdb2905aca5a14ffeaa5e3e45d3746ac57591756e294c7a8c25. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:50:03Z), 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/DEWK51900304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ca3d6fb5291f88df73d5bfce07e300a45c17c4afff9c444cfe54b281631bba. 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/QZFZ32027217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d08ea313118fb21a90c55838db1d27291798b3e1b49aeae38f42f0da398b405. 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/QZFZ32027218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x549608888110d756649c318bbd3add44ff91784eaea167870f50c3b59dcae937. 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/QZFZ32027219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c976acc4d04e37b972a2a9febc45438319174de0502e7286b0a857d9987490e. 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/QZFZ32027221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x552727778a1c9dbba50192ab9268c434eefd9c538b31d46e5a0795e13c1e42a6. 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/QZFZ32027225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd23264806f548eda337bcd9e285028c1578f4346a63c8835c6b56ee95719526a. 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/QZFZ32027226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094a3665d87458ac6b39959573bd5997206feacf359d7abe612cc2a9e129e202. 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/QZFZ32027227.
Mechanize, Vol. 1: Industrial Hybrid Rock Tracks
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e976205bbd5bf72db9dd9067d1568768ded61b108b55752270ca667ad4b8262. 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/HRA7X2000047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a07b40dc58599bea42e3c83915ce17837210880b98cebf01ddbd6557fa49316. 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/HRA7X2000056.