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 0x4a6b4b937ac02b4b8e6c9879612d47f40248caf27dd61114d5a573af83681c8d. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8569ab76-c36a-4a05-b173-f9e36005dcd9.json and https://artists.proofprofile.net/proofs/artist/8569ab76-c36a-4a05-b173-f9e36005dcd9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Beginning Of The End - The Departure
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 0x14b9e69ecae8529ffe83636916cbc19a64dded77e8b4ee68d5996fa9c5febea7. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBMJG2300605.
Beyond Known Frontiers - Traveller Companion
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a5dbd5fa1054a5df5e983c19b08561be5175bdf994554d4a2c179c53bc3aff. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/GBMJG2300606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8012e2abf30cd1cd97642212d92d0c9f8c5e17ad2aa38d255f1599e771e52d7. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/GBMJG2300609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9783050b840bec8082c7cd051379effb81551da2a8909d1e5d4fea367dba6f4. 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/GBMJG2300612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc678353e637cabef676788d4bfbdba4722ff640d6bc57a9fc6fde0644740c9. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QZWFM2382619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4e243328b4d83066c2c953907a9da43cd7a764991997d220a2d6d2e4d4e38a. 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/ES64E2478234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36868dd834c2f87e14c50dd235191cc006212d663f9c362db9adec34a52f8b8. 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/ES64E2478235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb83f8cc5cb175741ce106a85b82a5dee15d477bf3734e0e6de4a0b59f793dc. 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/ES64E2478236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cdabd25e5f2c62db5ed1f0d693654e056b4c6f9b9ff6f0b1e883616e03f1848. 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/ES64E2478237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb54bf0b8236c958cd6191785851ce569a667c7532b5f30d9857f3be56aa9a27. 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/ES64E2478238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe04df33bd9350ac6592af10f6f3905f18c23ac579148f2a7483eb4083587ac55. 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/ES64E2478245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9b51c3f5fb35a92ca8903a7e896a55d1dd6893170143ceaec88882f5fe3b37. 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/ES64E2478239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa11f8ccafaa42181f80be7eea931cb99bf54fd6d3a00ad13fea3e7ef8746cfb4. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/ES64E2478240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0add642757bb737df4a4b371debe8636bf7a61de683b1d43cd649b0028ee2f2. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/ES64E2478241.
It Never Rains in Southern California - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d98126eea3377f727cf33e0bed524d3c5f87f8b41f1735c551f0e2493382806. 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/ES64E2479067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65361ace3697e14d507c61b8c4940a3b3c46f2f2dec45ecc95ebba18a3f9f7a7. 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/ES64E2478242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a283e75637be671a6f821a447cbfbda97b0b8f6ca95c2496a50a2d24f845edc. 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/ES64E2478243.
Beyond Inspiration - A Tribute to Uli Jon Roth
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a7c62b6744f863eb1eeeaef29bef830f341dcc091bfc24c9425606c7097676. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USCGH0578820.
The Spirit Lives On - the Music of Jimi Hendrix Revisited vol II