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 0xbb425dd9d352f015a551ead128a2aaabe686bee6d5e5a211b2653f02c742642c. 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/47dfc07b-2437-4efd-ad22-70430e22af37.json and https://artists.proofprofile.net/proofs/artist/47dfc07b-2437-4efd-ad22-70430e22af37.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Harry's Wondrous World (From "Harry Potter")
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 0xd566c2e52ab2db3347edc322487ce5fddb3dadbeb73967ae6743cf72e8914743. 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/DEU901501130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29cf3877b2d34daea710c55ef803a8f4edd66b3873cc3279ccd8e29fae0a8425. 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/DEU901501131.
Long, Long Time Ago (From "Pan's Labyrinth")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9784199185bc2d65cb3b740ae430b4ba87db7d0d6ce47e9e78c0cec50c34c83d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEU901501132.
A Narnian Lullaby & Coronation (From "The Chronicles of Narnia")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69069dc0e1665c53de9f1feea7d2a6c59c08360c2c29476537eac6799f3d801f. 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/DEU901501133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba77e2ec79d7b077344310825ed2cd2f296de991d8c66c27a897bd17869ed315. 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/DEU901501135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb493f7fb75491a76359b698803609eb4ca8d295d811daf21d7c01e4b73538682. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEU901501136.
Until we go Down (From "The Shannara Chronicles")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89fefbfbc109ee1d5b6a2e33f75e7fa408e8b843345c69015343181867451ba6. 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/DEU901501137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08e1f6cd4a970c6bba0c874ba0592556237f7b6397df9bbce7a491adddd7135. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEU901501138.
Game of Thrones Suite (From "Game of Thrones")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f218f3e26a17b96eb5c65e545e397a194e00d5b607bcc500d2479613e74fd63. 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/DEU901501140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7dbd6f81b683cd725551fe1800795abddae64e8dfc6723d2fb12268ddcf7287. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEU901501141.
The Verse of the Ring (From "The Lord of the Rings")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e30badc42256ddc8e419619e79024d7e0f722d8698323e3afd0fa327a4c6f28. 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/DEU901501142.
Concerning Hobbits (From "The Lord of the Rings")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5774fd6849797ea726646dd7cb7150be416eda291e43809a2adf5426291a55d3. 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/DEU901501143.
A Knife in the Dark (From "The Lord of the Rings")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6ca74c30e8de0c4e1a65705f31e2c068aa28f33805c1d2e02ea69dbd5e7238. 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/DEU901501144.
May It Be (From "The Lord of the Rings")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5471e6469abf8181e5833a0c2e4e886b7a2acffc368668a2ecf0a99ecc059c56. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEU901501145.
The Breaking of the Fellowship (From "The Lord of the Rings")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902b9ef8a330213a22e3c4b7450043c65ba888c79c924491e2233fbee86b5bea. 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/DEU901501146.
The End of All Things (From "The Lord of the Rings")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ac4975be582b94133518d749e7586b8100211da1ea32238c82988f8da34386. 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/DEU901501147.
Who Wants to Live Forever (From "Highlander")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e6a4fdbfa38d0b393f6135e07a7874bb8a33338a2082edf72ae66c18e26ecc. 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/DEU901501148.
Hollywood Gala – Award Night at the Symphony
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca2e231f210fe960741482f79f3f03221e63dce7b632fd29da3e0b5130e6a469. 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/DEU901503357.
Hymn To The Fallen (From "Saving Private Ryan")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60b5e79d77054f986598e300ec03a537e53a4f524228d5ab6f1cd2e8a42973e. 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/DEU901503358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b01eef8b8e0d8b742efc3195722e54e1ff70e8025b4c6b65ecf89093b51fde. 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/DEU901503359.