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 0xaab74d48f4d8ff340555f755d53f5b779248d7cc43d0725068fdd61a864506c0. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eb4de9c1-f4ea-46b3-9524-5e54b7815902.json and https://artists.proofprofile.net/proofs/artist/eb4de9c1-f4ea-46b3-9524-5e54b7815902.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 0xc322ecdada110bdd797a43a328af0ccfe1b40df57d8f47aba7aa220c0fc9121d. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/USHM81831201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7296d20ba43f14c59189e243fdbcfac2dfb1a568c21a57af6ba45fde75af3c. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/USHM81831204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa65cc6071ca95e651f821b010768c04d812b8e891990954cc874eaeadd68474. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/USHM81831207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c29e68515a7162027f94bc9da686cf23e93b7a58fa2a71adb189163040dfd19. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:32:27Z), 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/USHM81831208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa233fe376d17d0ebf51ed2ea1f6fea0c0f54eae997ecdc4c22a9f292e06eb99b. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:21:02Z), 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/USHM81831210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245ff924f1841df1a66b448a473d50413cfad9864a8ba402f218155dfe16563f. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:22:07Z), 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/USDY42046456.
All the Things You Are (Night One) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8521009d36aa08ad64b30bee0b95a58d9277d65502249604fcb88b70f318d05c. 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/USHM82054653.
The Things We Did Last Summer (Night One) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4447c1bc8f505dc8c1f5f12f9ecb95aab85a15ee457f626b203d9379d6437b. 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/USHM82054654.
Everything Happens to Me (Night Two) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2984b871d52604753df02c7197035e9232d2035becf9d83b67491304820bacc6. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/USHM82054658.
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 0xeaf41adc63f1eea74655f5899ea42091a714b06fd3dac2c77f408c51ae9a4778. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/USHM82054245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4125952603c8fd55f337c50e4fd91d61992484bcd1ddf96c79fc1a26b88721c6. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/USHM82054249.
The Song is Ended (But the Melody Lingers On)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8061c66599a490496bc0085113342154d59b2a8a63a253e86705050f50e0667. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/US3DF2599558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe40fce55015b3f8a10fccf4fc44a687a5af04d484d2f8c9e7baa6bd01a8040c. 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/QMANG2465689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1a261d02f70747169ec868d0ae2d7920b0534937648bdd1b4d5eb6d9d61140. 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/QMANG2234298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ec9b10793f6f6f8c8011d32471fe29f3be5615d085dcc3be416aea34a19d41. 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/USANG2420567.