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 0xc2963cb2e57e3f5a64825c6ac0d6e1df38f5f04320faf89d4b505ca482b24679. Chain 2 (Bitcoin): anchored in block 953612 (2026-06-14T08:22:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15eeed69-2d67-4ab8-960b-bed693c09a15.json and https://artists.proofprofile.net/proofs/artist/15eeed69-2d67-4ab8-960b-bed693c09a15.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Getting Lost in a Hardware Store (I'm Fine)
The Songwriters Song (I’ll See Ya Around)
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 0xf549854046a6acba5764753f715e1aa975094b5bb2d9d4f580d655ae1778841d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCAJF2518902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb42dc8fed16fbf4ce86a6f06b489e841c0677b0dc7471fe9b775e6c953fa74. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/TCAJF2518912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61580b8584706e26826a232f331643702906b5359cb536fdc42fe524bd1d25a7. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCAJF2519062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62010b1584883a9ccff66edfd5cd73baae904deeffdfe02c7726abb815d46a1c. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/TCAJF2518930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb51dbd4e28cedf66625fbf2f6bcd28519d68c745aafffdd67f8c66439a6bdad. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCAJF2518937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2d0af3e51b3202c734650d7e6b1af02a8ab854f3466bd45e4ce00eb5981003. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCAJF2518945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24faec0a0bb911cf6aec73fcc82140e1d0bae0ca4041e2844e4b270c51534b76. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCAJF2518950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc3346d8a34892d492f9f0d4af5c58898a2331b71409675106ca4dcdf86cc43. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCAJF2518961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b157d47387bbd357843612d7fee52dcc870c7f62dacd05963830899fa3ec0cb. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/TCAJF2518971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13870eb151ac04cf0267cf79ac9102b436d80a82a47a1e626e48cf0bf21d3a92. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCAJF2518979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9369df2a5ba85d36c466063e62b7627de2143975fbbad751d7460b60a07cda. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/TCAJF2518982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ee83c3f174eced46cb94870d06ff194909ab297470d62124eb83a120e910c1. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/TCAJF2518983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1378802e6dcf12aadbd0bc5a600ef61da53bf1700e5fe9714c4e435742d8fae5. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/TCAJF2518991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda800b67fb23ac47bf3ac0640abdb8250afa2cfbfed73c4c902b7c27c3c0c29f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCAJF2518998.
Can We Still Be Friends (I Fucked up Again)
Can We Still Be Friends? (I Fucked up Again)
Nothing to Lose But Time (2025 Remastered Version)