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 0x42b90e430459242214ec19ac2eed823249d27a0f169516c7cb5382668456360b. 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/66803750-947c-47b3-b2a5-cbdb1cb9879c.json and https://artists.proofprofile.net/proofs/artist/66803750-947c-47b3-b2a5-cbdb1cb9879c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Punchline Academy (Music from the Original TV Series) [Show Intro]
The Punchline Academy (Music from the Original TV Series) - Show Intro
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 0xc421b3d2f51fdbcb80af256909058a11a3127d2bf05c851082f8d2ef4f68e25d. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/QZNW72412636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e2452768828ed824edbeaad236817dd85a049f309fc9f820f233dbdc590086. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QMFMF2423107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e203c01780efbe35a93087a7264f21b6a9e7c5c8d261118389f1d25490b3f6. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/QMFMF2423108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b481f4d7e6b6adf0bb20f430c5bb797b2f10d6de04d61eadbd27e6aefcb11b2. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/QMFMF2423109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75cabf4c7c0c3a2dca9ed4de32c3ebc56d380f18a69e40a4eeb847052afd4acc. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/QMFMF2423110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c32a843cd5a9922ab80b462e258f0e457175fa84c1f4412036b51faa64a9e89. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QMFMF2423111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f83144cf6abecc0e8733e84a1cb810b6e367b2c4baf89d352b6a490fe7eb31e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QMFMF2423112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb13ba7f69b15b4abf00453c9f46b6d4376c98dc4f2b2ff9d41f1bd659920563. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/QMFMF2423113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63755712d86b1c40f395690c4f1b6f362cfc4ab5c2e93d33f90b50709b671198. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QMFMF2423115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8c313bbc6a758268cbffa64a8327d880dc6e4cb3db67cfa14ae8725e4a5334. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QMFMF2423116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb01e06cc2762c3ddc78503c0f3bf831caff3d195fb50f996e55f8abb1ed32b. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/QMFMF2423117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112f4a4d9df8d617ce0289b41af3a24e06a8329f85b4b412713e259841d14c84. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZXLZ2517887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe89d9fbf014b2e04f53c9d0e60910763a9da5509e3d5d5b49f16b2333469580f. 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/QZXLZ2544114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa78068f8913afe664df39cfe833c1c64167d19bec9b25fb4c2837c6ca6de4d7e. 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/GBRKQ2245994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ee610923d8066fc04707c414edf5356e26e87fe560e5c82b0dc2f124cc5e0e. 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/QZNW72303034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55764b565a229b819b1a4593711946a14982d5b61ba1c9177176d2bf02371ef0. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/TCAHN2326661.