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 0x1bafb569c0219fed794d7f39f866d75fcf620226bef53716088d65a61d36c34d. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c5c134f5-d800-4213-91f0-bf8d2fab84d9.json and https://artists.proofprofile.net/proofs/artist/c5c134f5-d800-4213-91f0-bf8d2fab84d9.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 0xd42a3c51915a23a8672c1e379afb7ad58bef777aff64873c8449ce3587ba4496. 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/QT24H0000030.
Intro (Universe, How You Feeling?) - Live
The Rumble Ft. Chief Joseph Boudreaux Jr. Live at the Maple Leaf Bar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4d48ad0cf7fb3f4c81909f0cd7daa737f728dfdc1f963596ea817e69255ee3. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/QMEU32303715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c9cc4f38d2e4c01e1ce677879794646959f852fc94d2568f90d347435df9c9. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/QMEU32303716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d93ce91ddb151d10739f4c4f35297812f042158de4c613301ef2de088c0f6a. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/QMEU32303717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cbd578b85e97af3154feca620a657018e3ac2dd2f354daa038bc48c981cf05d. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/QMEU32303718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e1d7fd9e82fe9ff19d80251d94f877d914ccd89823d491e0c91bccb307ee3e. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QMEU32303719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b6aee13462fa2a272566f3e92826f0776d8e9f52dd51133c56fa21d5e630d5f. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QMEU32303720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457221d6f9148cb6014d375c0647d141248cf4e26d9d7777d8650660a2a31454. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QMEU32303721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c218df4b85d303da3e410699a5b376492e897874e43f5b44db3927e80fbb89d. 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/QMEU32303722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295accab31b385f3801e4949cefbe4db40d11235fb7e1d30deb749d1d362819b. 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/QMEU32303723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e1a6d811a263c7033ae30b536431426bae823ceb0b2d16305c1240af0b9775. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QMEU32303724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e78f800aaf4f941260edd06e895ff07877547ad4ee2ac034024a4b5768bcf92. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QMEU32303725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45246747d63ffc6eb68f0a13a3e647e5e99fb65ac9456224183b0051455b910. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/QMEU32303726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c3a8a22341d9091b18127f4455d03f996c745f5a344e5920f2f10fd142d8ab. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/QMEU32303727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82af5439625dccaec271cd71cc37885998d722aafb249f2ffe94fd3fa3183a7. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QMEU32303728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42a3c51915a23a8672c1e379afb7ad58bef777aff64873c8449ce3587ba4496. 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/QT24H0000030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c218df4b85d303da3e410699a5b376492e897874e43f5b44db3927e80fbb89d. Chain 2 (Bitcoin): anchored in block 957249 (2026-07-09T02:31:37Z), 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/QMEU32303722.