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 0xfebf9bddc03053a63eb91e4638238a312a17483e72c3fae8e421a157c928f474. 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/14716b08-2195-4cfa-a715-e2bfbc221375.json and https://artists.proofprofile.net/proofs/artist/14716b08-2195-4cfa-a715-e2bfbc221375.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 0x25ba3e8724b18587b78851c65b7d3e9513da2550818773c9d12b32dc84a1a8e9. 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/QZES62009431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9154d1a6c306667e8a91ec78f3b47578b199edf0ee59dd34a28f87fd565440b4. 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/QZES62009436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428faf32b56572e7c79b3377a08850315064094b8f5061f65fe5c25dd70b41d3. 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/TCAHS2377844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300e69d763b89db420d77c873672d4f1267f4391789f56b2c2abd97878cb38a4. 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/QZPLS2272408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c71b55136c63b929a7e6a330df7ad2dd7b9fde0486bf68c8e4c7107728f0d8. 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/QZPLS2272409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73db2bee7b287c81c6f5935ba3fe12cf815bf67c5ceca172a95fd63281055e75. 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/QZPLS2272410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eca3f66255780a06ed568c939cc6b027ce65d18f06ef23f67c837b3d467c209. 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/QZPLS2272411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399a73e3617d867fb203aa9bb82b827cb39b9586aaa789c53714ed4518b357e8. 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/QZES72249839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e20aacc54ad287b72b2668d4a43fde0b2c472eff5824aa3cb8f6edac20693f. 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/QZK6N2120397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9719adf25667e29c0afca65bbba5df149a957f7acb047d494c06edcc9b8f8fee. 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/QZDA82193417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc146ce627ebcd8b08596879d7aa94444f67fc9fe22dc0a43762f63cf336c0ad0. 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/QZFZ32144837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55495522a333ee0de226904f01ba30eca504ea22426dfed004fdd328779247b5. 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/QZFYX2190489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e560b59be774613a762d3d5d0969e206d5daab931cd9cd03d6f5b3d500d0c04. 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/QZHNA2065532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac99351165a5489f1e1a9253f26bd5af9c80e347e004762a1a045f7b939c0a6f. 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/QZHN32032390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91c650e6ebd058c76120cfea3b5e4ef52c2ccb194e1f28e9de69ee9307b13cfc. 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/QZFYZ2064007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d055e8465d93889ac2a25c6454e9793c04bb1f225e27b70e25047759924b01. 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/GBFPN2366604.
Pick My Poison - Black Hydra Trailer Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x693f85792b96a006392b0bc3974defd34ebd6e78ff67c02437a3f0dc3f32eec2. 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/GBFPN2366605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa99b92f0c76e862b9525ef9ce3fd879b36745d7ff03896e3412b2bee7b1babf5. 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/QZHN42500650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580aef82d8e2788cd0404b69817468e1b2124ca00eb4629d89e29302e2b6e0b8. 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/QZHN42500651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dfd7c85e699ee070356e7554f682a533611ab2dfe4777797edbb6d26e343bb1. 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/QZHN42500652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89347ead68cfd35f0974be0359b816d28a903158e7acc5ac525c6f0fa12fbfd1. 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/QZHN42500653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e66af1dd97440ee73efc2a593d67ee2aee9aa9422072965494db070a316bd7. 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/QZHN42500654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1cdf3c5835087091eeb7e0dd6dcc0c9cf946af3ff4f6cfbd5b6fce7f4a045a2. 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/QZTAZ2406891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe061fbc305858a1807f1a6eb7c706e886e2b629032813d7dd4b94cd0ef264e0f. 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/QZTAZ2406893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f247ebfa29421b8733182ec4a22c5573d148df4d2b99b2af9fe7c9a4dece4b8. 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/USA2P2338268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cee19c52ae89b7d288aa9d39b3df9816fd187e3f44d2b80be1cb127d184c0e2. 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/USA2P2330707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364300434770a3b845259ae6580d256891327bbaafdbb72eacc1b06170368b3c. 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/USA2P2338269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57628c1b0d7372e6842a16b0116519fe54634812663220b0f2b8846cbf418547. 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/USA2P2333702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a6673edf3219ac51f601a795bb1224a275eb73fd54b46244e7ab79b84118b3. 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/USA2P2338270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4038ddfaafad447f21c13b9dbee3b9fba599ae9fec4dce98803790738a748c1. 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/USA2P2338271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x606342b5ac15fd19fe529f8e014d4d86f0c90945d46864766090608198a60288. 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/USA2P2338273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a168e34993376236993f3a237dff3ff0a7a89e3dd5fa0750d0de51796e1191a. 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/GBFPN2570206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f01b6107831d776383bb766c057af9cec3cc65a4d2b80498d3339debf5b1da3. 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/GBFPN2570208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a7d3d0a33d357362f02751eb76bb264ed3ee38f97e249618a879559cdc99ea. 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/UKKVE2304302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ffead4be1cc712c9cfef33c4718df16ebe4f019b0f381a125120ea421e2a44. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/UKKVE2304306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7aa5dcdf3cbbc0a3b8d12b03c38e00a8070752387765fc48fd6045931207e5a. 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/UKKVE2304307.