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 0xeae88f1edca164b8734c6e296c023f81b02fde834269a4139b250f080804dd84. 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/8776ea6e-0214-485a-9f1f-5c0b2fdbeffa.json and https://artists.proofprofile.net/proofs/artist/8776ea6e-0214-485a-9f1f-5c0b2fdbeffa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fascination (From " Love in the Afternoon " ) - 1957
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 0x2c2eb98968330c8b04c12c4d832c4d59dc1d43d097db5535057119fa294a4642. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/ES5336807205.
El Padrino (The Godfather) [Original Motion Picture Soundtrack]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0f6d025c6a8f6607cc36db8837966238efc3b2e9f0d1468ebd7e56b364b7f3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES5337310135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc59a01cccd333581a5369ac755f7f2444dc9ee8c631bd5f09f4043d478ebe81. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ES5337310137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f50e91b8a3cc5022a2847d85cc42e0b3218f2dbcc263e9cc32dcc322676779. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/ES5337310138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0314806ef25621b90e25ee25300d3b6768203b8e2e600ad800d56864d971abe. 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/ES5337310139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637a4c70bbf522180415511a439f3fd3001e558d20b3aa681a528d92dd0cfa6d. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/ES5337310140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f155da49c380c94d26116f126a6c3c8215b6f16a02660bae378d1a966eb0f7. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/ES5337310141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cdbd32f45f5f2b722f06f9b218f4235f22b33c57ef4e55f2b45bef41070aa02. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/ES5337310142.
Raindrops Keep Falling on My Head (Tema principal de "Dos hombres y un destino", 1969)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb246ad05eadcca28f6af583b6bcc798249152b02cf3766866937f9ddb66fc2ae. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/ES5337811766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a5ce89ed1dec544e381b956d7889824bea8f52df1ac2e3978b95f135d7fbcf. 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/GBLGL1202291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1113ba4279f6d6cfb01cee1cd7ed3a3c31e27e6c4b92d9cd778f576e8d79dc03. 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/CAM460425056.
Music from the Oscar Winners: Once Upon a Time at the Movies
Great Western Themes: Once Upon a Time at the Movies
Great Science Fiction Themes: Once Upon a Time at the Movies
Monster Hits: The Giant Monster Movie Themes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f489b0efa0ef361e4de0bb868b433ffb20d9b8eaa8a0629bf8b9d032b4d3b00. 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/MXF550505741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77869b92177367268cb5dae3567147153406e95de1ff629f0accac341fd6d3ad. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/MXF550505743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03445201b2d21c8253fa327cf6fa80f5dda064707d809302412b0e185df30e37. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/MXF550505744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088a6a8ca0fbd57863bef2c0327f90f833e3efdd7cc135d573ef37f0504e1c51. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/MXF550505746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecbc6495e871d3c0c416efbf1c6ed51448bd1a9a85ff211b8bbe3b305a345295. 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/MXF550505751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e9dbf8a7253ee1a46d22870e5564e90553d84a7772f0c5880314f345c79a35. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/MXF550505755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c289b45b9d449fcbcd707159365654612a26201eceacf2eaa5c4ea30c4d2bd. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/GBLGL0823667.