Halloween is a celebration observed in many countries on 31 October, the eve of the Western Christian feast of All Hallows' Day. It is at the beginning of the observance of Allhallowtide, the time in
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 0xd2fc82b27351548a92cb20350aecabc2eb517bdeb1195a5e20f2ed2c058eb14c. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a850a034-0d28-4206-b01d-e562b34e6b2f.json and https://artists.proofprofile.net/proofs/artist/a850a034-0d28-4206-b01d-e562b34e6b2f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Funeral March - Scary Halloween Classical Music
Romeo & Juliet, Op. 64: Act I, Scene XIII, Dance of the Knights
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 0xe101ee516c147ccdc3a81182a7dc0e61a7541a5ed25844670db957c0f0ff0db7. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBDGQ0818213.
Don't Be Afraid of the Dark - Halloween Classical
Spooky Halloween Classical Music - Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83996492419f792c114d3c18cae985d7972de34a76cea247fb2ba5a7f8483771. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZBRF1806623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf3cbca791f13614e7574c4801867fec1c3bf133926bfb549bcf15a98eb3c4d. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/QZBRF1806624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52fd4a667e2f4babbf5a63028a15f3c41713e953f433760b19cec91029fa3394. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZBRF1806625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7c3a92dba52b81f72a3189a303e7277871d903e1086fff75e30f12a56dd0f6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZBRF1806626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6419498a4e7ef152d265d4b700e8135d9267c4860f89a53f91700d9e01f6d08. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZBRF1806627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088bbf7f0e906b96656a86e2582307bce574fdf9fa9f33b1efe868c7be8d1ab9. 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/QZBRF1806628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46cc6eb8c287d9746e02725eb67b2eb5d9dc2a29c5e62e668b0efa6d4254aa2b. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZBRF1806629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6a8ac37af0a9d2349c65bd27e907db865d8d03466a1f5a1ced0aa657df9652. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/US3L61568417.
Classic 1950'- Soda Shop Favorites, Vol. 1
Party Music Club: Happy Hour Dance Party, Vol. 1