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 0x14e874eeda54f0d760a213c934c45db57c7a685a828ec8527ae1df6f74bd9363. 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/b80cda8b-a11c-4c78-a309-1bd9ad257636.json and https://artists.proofprofile.net/proofs/artist/b80cda8b-a11c-4c78-a309-1bd9ad257636.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 0x4ddcd43ab382bc2be1ea9f70d7849403a56b9f83eb403c3fc2d49168e45de71f. 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/QZDA62254566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09534a1ea20deef8d90113679d06f8f4a5ee15a029c545d25729842a22de9256. 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/QZK6N2380317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8573c88267824e8b7e941fca452b763f4cebafd3ffcb38b99115ef37cdc0d9c9. 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/QZWDE2216862.
Salud (Do My Thingy Thang) Sped Up Fony Mix
Mind Of Horror With A Pretty Girl Aura (Sped Up)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b43c4c7cdc1c43711a16f7c11e1a92f05d9ebb5f1fac6c1db4dad521df462ca. 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/TCAHT2498228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ecb9a2a3ac6d08029a4183d892f31fa8e54aeb7c37248725310fcf640e599c. 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/TCAHT2498231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e27ab47877070c94a25d536032918f0a9cbbe27a264fc3b0f726219a400479. 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/TCAHT2498248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd1fb139a21b7e77d712a2a88b6c786d223a6f1986a4821fd2f8b4e9361f36a6. 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/TCAHT2498282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d33ad4f092176ba7582b2542475562ee76abdee430d4c031216b34674544919. 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/TCAHT2498086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4202d4e004cc5f1de2d486916afb88d2284ade3d900b6481c0ea64e0f3988392. 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/QZK6P2581307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fcf13e5925bf04dce0dddbb9c65e9710a9e8bb1afaac4b13fdcf1322c708d4b. 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/QZK6P2581308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd084b2ab40b123e9de23f90fc1896ccee1c4d131c6b671341a9008093b8551ea. 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/QZK6P2581309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x745f9fe4221984bfa23f8997f3aaee767fc8d0a9a2cafd987382d97000ecff08. 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/QZK6P2581310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1547fd7e13629035c2e54dd264c470104d96e4caed5468fadfa06be82f8cdd06. 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/QZK6P2581311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3adae1175c7bbd13aa984a9083e1fd5d42d8bb45b64deb0a78cbbaf702e609b. 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/QZK6P2581312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8eceeb131f1e588aad9a6ba457806801637603c32a7ec23bf35f84c984325a9. 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/QZK6P2581313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd064d1b67ddc969536c6970cfb9bdc7a9c7caf2cc5d60a8314c1f27d5eb1046b. 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/QZK6P2581314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd00c01da60f7bda57c655539afe88fddebf803f9574ba4c2b5e9bc5fb863187. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZK6P2581315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d9dec65b45a2b890b22abc0f492a9fe92519362d9b90d149a6f34ab381dd59. 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/QZK6P2581316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x529f904504bced3a95c54c0ce83d2e5f8555262d7fb750d1dbb42fee1426e218. 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/QZK6P2581317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2a94f224bb0e4c01deddbc530756ae8d0daa05498ac3ba2f9b3bd19005bca8. 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/QZK6P2581318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7645b5186429c7c8142846a0b1737d6b96461a698451902f0b7d3c103d1a77. 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/QZK6P2581319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe740b681446cbc8e5043a2f32e63443f0d6a1eec3440347067c16f12421d06ce. 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/QZK6P2581320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c72abfa2fa6159694ff19dd5e4ff37a7874a2a74fd807686b8e0a48bc95592d. 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/QZK6P2581321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54cb772d0de57b2247bd5de102303580d153366db8647c73a23b9c725d75dc0e. 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/QZK6P2581322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1eb42fce823e43fdd64a48ac76faad5e293d50a4b4ed664a9cc0c40dda776d2. 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/QZK6P2581323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0251072b71de0a601066b12034cb71442f5a57dd41d960e9f667fd35cc3cef90. 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/QZK6P2581324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x505c54b14db8cd5f40db76181cb4058e6b5630e2dbb2fd7951a9b927372a6873. 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/QZK6P2581325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39cffbbbc3431c0252f7f55a18d89b00eed3250ea0a9f91a90753fbbe9578309. 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/QZK6P2581326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebe3e8d1ce0088ea7bbdd60904da8abafd5a173a3d67980526f1d2736934cfc. 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/QZK6P2581327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf913563ad5012c34c9bea28a76c8e3564d53615373612388691bc857af01e285. 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/QZMWW2584778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2f3122d46132d9f92e4171f3949d1ae76ffe71e1b4b4ed41b777db91bb0aa4. 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/QZJG52565606.