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 0x51dc9df1fc755d0623108040a2045288cc6c7cc24511ef8e3ca93f86d70ca14c. 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/6974194d-55a8-4f97-b220-8e125e266198.json and https://artists.proofprofile.net/proofs/artist/6974194d-55a8-4f97-b220-8e125e266198.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 0xcfd625e501e67d4360ae344e3447ef07686e57cc969b0cf3a7a945a6f924348a. 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/AUNV02400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8044ab9f0a0184f1edd690a444a95bffd5ecc902439440b875f330b81f60d8e1. 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/AUNV01900321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa578f1414b375cc28dd3a8eea5080f7c36789f746e63699b88bbdc678098fe8f. 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/AUNV01900298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8044ab9f0a0184f1edd690a444a95bffd5ecc902439440b875f330b81f60d8e1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/AUNV01900321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d5cdedf633a58eaad775e93bd4fb80851585a99ab8446c54edb60a0ef54af5. 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/AUNV01900332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8424682e9281a3636d9c63fd011f19bbaefb6f5086c9009558fea6393520c5d8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/AUNV01900330.
What Kinda Man (Levi da Cruz Remix) [feat. Ollie Gabriel]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4d2c38377c27456ba79de4ed2ac5de78407309ec545ebe8e182435dffe43e3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USYP61200055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x726916a0e945b81a5b284015066cd951df18f2f82ff03a40a34ba01932f51a01. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USYP61200057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bfd383b57df400f7d422058e2df0dd62402e89035489ead186470a38e75bdc2. 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/USYP61200058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b6e06bfad1997142c2647ea6c12073e1a54e33ac03962197b2e2092cbbf726e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZFYY2306139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6032a1e9376cd838945e278c6ae487bed42b22c9688eeaa42d0598b387ac171d. 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/QMRSZ1900915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe283ac7337ed99ba45205f41be6375767f98ea7338d5a5e9389d2437effa3251. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEE861501202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee64b54eb50599218a0aad1132f001ef3df91f4d8e4b0cac829c36f805bed9ec. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEE861501203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1a501861cb2fec99392fab24fc9c5d1282fc34562f7d0c57dae556951c8043. 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/DEE861501206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1a501861cb2fec99392fab24fc9c5d1282fc34562f7d0c57dae556951c8043. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEE861501206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73fbb7eff7bb40998964862af01774c5f713f69569801c6609ee87039be2fcf5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZ8EV1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19411ec99324953ce8cf920445590521408aa13497c50d1d3caa60234c7ab65. 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/QZ8EV1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb42fe73764ba59f1ca243ce3e885e1bc32a87263575b1c16d1db95a1bc0c259b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZ8EV1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a823a58aa4aab0086e1f6470c8a9bc5205984efdef58c16706704c03384a6c. 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/QZ8EV1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a06062839b6ce6ce0fb791f809ef21185115a41aa30fce7414ea4644b191aa. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZ8EV1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab071aeaf5caa0b891ba9ad9596b9dd96bf068e50c1780e86b1d9a052f89ccf. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZ8EV1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e071872f3e56765d66399a5e0604b5a5999ba1118e42e32df18a20904deee0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEA811601223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf7cef84b4465870e7b6f0c12091b59782062d67c576bcb5b3f0105f247ac086. 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/DEA811601224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21fcce60947f0dd6c5f4a373a0e7ed89e1f5499ad77ab31d74373832a2ce6e99. 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/DEA811601225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfcd5457a79dafffe125d09cf9c0a9058eb0ec6e6f3fb390b28ecc8fb200e67a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEA811601226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2fb97a9cbe46b1bb8ba84b441adf9718a9a638ac03449fcf0aab97689f0b62. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEA811601227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87dc5d0be98bb2075580932e1b880be65f2464668f1379fb8c5e7fc0b6857318. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEA811601229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd53ce9de84fc18d8a7a421ba2350d1b3a88584230ad90e89ab2af607264d6c. 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/QM6N21919650.