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 0xeed26b0719a5996ef6777f86ca930163d673ae861526bfd1fdb68fc8fe552e49. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b761dcf6-00fd-4ac0-8428-7ddc83275f66.json and https://artists.proofprofile.net/proofs/artist/b761dcf6-00fd-4ac0-8428-7ddc83275f66.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 0x1686bf97a4d3a3d6571a96a13e1239c3538b0a4d4a3a5cea92b778bdaad098af. 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/USUYG1458420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85feaab9af9c829efb961c8ba419fe083e43af1db8af13eeef629e3e816b2261. 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/USUYG1433884.
Florida Water (feat. Luh Tyler & disposable) [Sped Up Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5795e46a26ebdb3802aff070d18b06de8e3e8a1197f0265bcbb2f43203718ed. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USUYG1498000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe61313b4d1111427e6740d2af95e2eedb0bcb36d086fbdf1e417f2baeb6086b. 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/USUYG1496748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2001d8042279e2431bd2e654c0f8d482a971964c67840935cfdc6f19701f8468. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USUYG1496749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x685151ffc441bde488dd809c09e6154ae045b361e1f51665ed5176caaf229c9e. Chain 2 (Bitcoin): anchored in block 960277 (2026-07-30T16:10:47Z), 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/USUYG1496750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d30c7c60f25b570524abc7ce0600b04b11138724c2abe0c54f91f8c2075283. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USUYG1496751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc07a69ab142ff161e5552e88cead82b0f8b5cfad09b610fa43bd752bb690f9e. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USUYG1496752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c2e7b5efb0fc250aa18eceae81afed912b18f2dfc9eacefc9a67667b5f4b91a. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/USUYG1496753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d1d859a4b8caefad2b0a2d368a3d9779cb472cac538f169478a0e4a36de87f. 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/USUYG1496754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60dac753eec358b2ae964548f3686b596e4cc3f1cbf6a49f493da08aef9afdcb. 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/USUYG1490893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb5a47e40d44f39ddfed78b8a7f9baccb44d7f0910f8a4f7bdb3cfc26fa5ce7. 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/USUYG1521870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbde0c575dc70b1c54b10562caa7921b747eb371aad9a95c1101c60103ab792. 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/USUYG1523060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3901197d14523b4d841966af5f01dfd2f59cfb67c0b6564c00c4a7a15732085. 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/USUYG1508492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ae88b66317ce9b1f0e01762e4bfe2ce216dc315411dafca6158f080c034d5f. 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/USUYG1507764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69fdc979e2fa945f163ab7124a1519c1ed8901e68fee8be3e58a290cfa48b940. 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/USUYG1500581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7473148e69ce82bc7c4decc31b5d5a9c881a0b2b372de72c0cadd6f92bf173fb. 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/USUYG1500582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137afa71daf35f2811392a57aa74ffe73a06a463795a803c6d1786c3dd5d9b41. 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/USUYG1472751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86662690cd4d6a5b58cef94bc44a0e32deb7e9c1ae523628fc66cbbd06826b1d. 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/USUYG1458426.