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 0x22fd8598d10be70546b75a4a9c246fc1a5705efd3b533236d30d31a95a287e25. 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/d055947a-f9d7-42c4-8dcb-861e3143b41c.json and https://artists.proofprofile.net/proofs/artist/d055947a-f9d7-42c4-8dcb-861e3143b41c.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 0x137cc27c2416381bc9f2d7140833fd817622e26ddd16a08c5657dd1430e50f60. 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/SE6A91864294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50d43258f14aa10ec99468f66be60d086023d0c905915350bda8a8f33c6dcff. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/NOHK62101040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc22a230e6179bd6f55717fc56b21a83a202812e7fdbd711e0c067c7e7fa8f7b5. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/SE6TI2163500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f3beff57eac10c175a711373aa79b7c3933225c3b986bfd39b622791679eba. 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/SE6A92047800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4e2d652c8c65add95bf4d1bc9b0618684894dc6a52e22c4b71c07dcc4417c0. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:24:43Z), 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/SE62M2105746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80d0ff5887cd5528c010e0568263119ad35d5a4c22ec66ad392bcefbd2500c8. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:44:46Z), 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/SE5BU2050646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75404d0a07373a76ac142b2a5aa98fddd231cd95233002866a886b2980ce878. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/SE62M2105747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7f23e46869adafe95b17a407f4552f7c80d1e69bcbfadfd656237bb0f10430. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SE62M2105752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60663210db467713cc67a6b278ac1e80ac8746973c1c3a9a8bdec898a5d17729. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/SE62M2105753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x921f10af7beab056abb5ff063acb62732d6e4119806dc5f19f26e9422ad7d18e. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:28:23Z), 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/SE62M2105755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7852633d90ab538e3272e2c1bd3bcf3738376da7f27b948379f45bb10901d8b6. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QM6MZ2302496.
The Mayor of Storyville (Electro Swing Spin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a427a7a2257ab4c78c5940a7041dc1845a12958aa7d89b71c49542abb28c50. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QMDA62363155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1882b5228625e6f5ac4f49cb704acf63a3b78547f60f972c24a88528270db093. 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/QMDA72569533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe22c2848370881c27b0179b77d9489103de642908db5e2a9590101e0d98f694c. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QMFME2577273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b167385db077d03c9532020418f1fc49532a7a7281d93554e08122bee03b747. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QMFMF2563705.