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 0x59f2dbcf103904782243450014bd83bd87b02a4697727050eeb41a97708419c9. 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/3ea971cf-746a-4f05-8fd3-c4091c90110e.json and https://artists.proofprofile.net/proofs/artist/3ea971cf-746a-4f05-8fd3-c4091c90110e.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 0xcc6e5ea6b1426c074d57edfd4fce7db1c6f4c6daa6ddd0de5151a87205c84a46. 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/UK43Q2191121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff7c45ffa6b3d56ab52b6f7d906b7aa39ad85a82d56d70978ac7c611030feead. 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/TLVEM2419629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3dd7d17d71b2bf8a5fca2077e185edd7a60cfffc956abf83dd6fca9074f7e2. 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/QZPEW2440680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf230be5e465b1ec19c553b59f578735d4d9a2af361ea7d617b2ef95488bf0b30. 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/QZPEW2428588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf163b67777171861936924fdb4a69f17e3b6279639c1c9ae88d7872dc4cdbca. 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/QZPEW2412190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb13b819cedf81bc757b61f06fbe5c8804106b8566fbde67b013b9ec3a47db587. 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/QZLL92446225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc26cbbada51c4d59f8e572992ed1f3357f0186492ba50290b0982d049040e97. 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/QZPEW2411268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5695012718044b04a87ca7d491db5ab212b796b72127b55311da73643b2002e. 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/QZVEM2394331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8721c39cddb87461bba8c74ddc9b2b6c5ac49c802b0f7e3c46b0d613c06c555. 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/QZVEM2388869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0666421456eaa7a8f956dacd32d99910ef0dc79f8197afce9f2a9bb60b702b4f. 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/QZVEM2384686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9be4c1aa0be64616dae0d656a472ee6fd341c51632e933c0949875843df1701. 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/SE6A92399366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f6eeb12ffb7c8faf09031d08bd3c69a0e88aede0b471bcfccaaea6ea65c925. 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/QZRP42369615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf8667d9b7aa2d180cd6ee9bf8c4e32eb9c52fd854e02f409aff32f03a2c6df. 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/QZNJZ2368761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1336c2d0c405dd124a65db49bcd7be1829bb2dcdcf0e83cde28054825b78c30. 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/QZNMU2391955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410bda08dc3ef31298f7e8dc764fcbfd7a4bd11d89c4dcbc192c2a6406c511a3. 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/QZNMT2306995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0de86f98fd30753f5ecfced8007e376d9e54f4a8a725f43f87a2ea030e55033. 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/QZ5AB2390412.
Bougie and Thick (sped up + slowed down)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3fabefcf4941eb1031d518b8c4a0b5db2b738bd1a6abb93a89e83532608f507. 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/QZHZ62215892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x927c924cba4b2cffaa160198ace9b909cdab8aa8269814b5c017af7fb2b55b50. 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/QZ2GW2200174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3455648a057031fbdd565986ae7fe75344e3e6305714e41061b4c0080d8bc546. 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/QZDFP1929112.
I Met Nas in a Dream (slowed + sped up w instrumentals)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae38920ff918e2b5b189a1de595c33565fc0a956de449470358d8b9170702fb. 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/QT2VB2404312.
TRUST THE PROCESS - sped up + slowed down
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5695012718044b04a87ca7d491db5ab212b796b72127b55311da73643b2002e. 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/QZVEM2394331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d497ed3914feac1b3a978264db6a29223af1f6a3981e6d845b5ca8a16e21dd6. 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/TLVEM2467987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd01f4f6461bee008e52cd4dff2ae3d095d91b76f817d00697dd46a9a882a6cc. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:46:03Z), 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/SE66N2248750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0212289c2ad5c07fde46f25bd7272400de41eaa1c6bb7d1726ac0d130138f282. 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/QZNJX2329202.