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 0xcad13aa04a24f1ba7856b726e713d33aaffb7c878661f14af4ebc7368e7b0aab. 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/a886170b-fd4d-4968-854a-92cca0f28f47.json and https://artists.proofprofile.net/proofs/artist/a886170b-fd4d-4968-854a-92cca0f28f47.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pantei (Twerking Class Heroes Sweaty Version)
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 0x3e6844824c29aa5e7a0fd6f10e4fd9bad16db97ecdbe539ed36efc2beb7f70b3. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEBE72300762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf1b6fd3d1239fa0a8f21731ce5db549ddc004c6041a7bf208fa6eef35cb04ce. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/DEBE72300763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630627524e57f7cb2665b1999793d605dbdd36ea3edd96a5c71b65aaf4776cdf. 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/US83Z2512597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee0549d8e896ead8350fdbae275daf1aa51b5f6c8491d51565687b564d53f4a. 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/US83Z2512609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a0e32b48081e01e6df0bb079b5e11c54f1f04405a736616ca14fcd5e92bf4b7. 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/US83Z2512598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c961613a236a380a5d7470025cc3bb1dc5cc9ecb9a41af4c8d6071ecadbc71. 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/US83Z2512599.
Small Town Rebellion Live in Melbourne '24
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd67874408cc8960a82eb9c97916cf5224fa8bca4beae00e07b73a1f9ee7677. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/US83Z2512600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217760e0f542bf6223c2989b1d76ddd81d9352887f26865ec067cff093257ab0. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/US83Z2512601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb552b73e03052bee9c84d9fdf2d38f588c8327bc237f0a7f971019475be9632f. 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/US83Z2512602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28b2442a0d6c7201d98bd0bba49a2835b1e8b205ebbdca6276e126a87e3fb5c2. 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/US83Z2512603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09824e0dcd45ae03bae97e53662cfb72888415ae2538ac5d4ed31e4800b70033. 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/US83Z2512604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea79bd4773ef7939d7c5f09bacbcc4eb91fb6e4e2938369ce4907c30ca5ab15. 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/US83Z2512605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x777ca5d672a7cdef9026132c8648236f16c8605ef66d6359807f0266ddb30cd1. 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/US83Z2512606.
Midnight Organ Call Live in Auckland '24
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaefa8b0a1e321caafd7b5d29da911133d55bea596fcf05bf6bbd6039de74428a. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/US83Z2512607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1211abdcf0160343862c257d51a16249afb75a435a985cd7328c996f01b2e8. 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/US83Z2512608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21bc14026a85cf00be2c1d746ce93c83b22e2301ed9d596b6ef1f77c2665ae3. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/US83Z2546454.
Found In Translation Vol.1 (OUTTA Remixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6992d4719cc34b94873c66ff2482d2f2d19293d8d638c5ba22757f71b980c11. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CA5KR1833549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab6c139d948d8f328c6fcd3324625778c46411fefea7974916f90acc9636de5. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/CA5KR1922835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b22a47775edad828aad356b60f9237a5f0d5bb764c3f12e3bd8f02fa1efc506. 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/US83Z2324281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a4374e64fb11e603d05bc181effb2984b0016a422b704ff1bdece65f672944. 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/US83Z2324282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3bfceeaa53eb8876108167b8e4577a0923dac264210cdbe313c14e7a693337. 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/US83Z2324283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5bce91b4ed3c6b1f5de26aa925c62ed7e6826b182eb8db224398505a68e7514. 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/US83Z2219127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89c7d389701eef984a23dea46a92f4cbb847a69a28b926458e6172f227ce827. 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/DEY471981989.