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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4891d97f9804eb674e16801757fa40f6d3acec67f8f382731c67f3a703924455. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b9022b1a-7ae2-4874-b1d2-8421e35989ce.json and https://artists.proofprofile.net/proofs/artist/b9022b1a-7ae2-4874-b1d2-8421e35989ce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Rarity Music Pop, Vol. 257 - Exploring New Sounds in Hi-Fi
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b73d77ead82280efd366ca7147231ee91df72ab4c9ebde4dde5d77d8b7a19f3. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/AUXN22485333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169961d810ba5030f81ed62c1562438974fbccd7f7db90eed1d8e094fcec1734. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/USRC10402133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa174f88403d9c52db94e833b45f407f37875001e14c30f4b0a6e7c4545151da7. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QM4TX1781556.
15 Éxitos Con Juan García Esquivel y Su Orquesta (Versiones Originales)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d04bd077d55d9fa619cf78e018446fb296b2ac6e9e5d81060ad6a1c997740a. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USRC16707637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f9ec246c7ca6774e1aa6c320dd3992690a667e7bac647d3aa3529d10f1e544c. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/MXF016800082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1997b1e1ea7285dc43c4f7c2cb6ca344acd0dd27e1e30b06097115cfa90b90e5. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/MXF019501428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21b83bb167ebb51c731b0da2925508e6f6f508d9555f3c253d071ec9aa77111. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/MXF019701232.
Tesoros De Coleccion - Juan Garcia Esquivel
Cabaret Tragico (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4348303e371b79954694fe6753663745e5b0c4e2bab772ce9cee18f97ba7f08c. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/GBBLY0801441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cfbac1be5da6d66c50161c348ae09a3d9154a4e599cc2b1bb5e1b559466ddb2. 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/UK6821756220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ce8cc3fa8187eea537343a260db2394d52797e68b562b79f3bc44d3f7288e0. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:56:15Z), 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/USA371220741.
Exploring New Sounds in Hi-Fi: Rarity Music Pop, Vol. 257
Infinity In Sound/Infinity In Sound, Volume 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62cb950c83f1ccf46b8154ddae060040b040a2cb801112f27c73463d1b9c1f3. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:37:50Z), 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/USCXG1200361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0599292ab940a7fb83b5ffe6a6dda8343b1a9514408a17b284c2fda8d1aabc9a. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T11:09:11Z), 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/USCXG1200362.
Malagueña Salerosa - Sweetheart From Malaga
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51bae8c5674e079d33ae13b48a7b37dbf9e297a112ad374075b24293daa62597. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/USCXG1200365.
Boulevard Of Broken Dreams - Boulevard de Sueños Rotos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7507b94a799e897f2a8ac221c4140ffa4ef5b9583f8c31b103df15b8d1374508. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:12:05Z), 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/MXF015900425.
More Of Other Worlds, Other Sounds (With Bonus Tracks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2f3e46d8a0f4a9b8c4aa6a5e87bba2f7e28ecea40df6c9c3f1061b3c9be1ff. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/DEBL61369813.
Las Mejores Orquestas del Mundo Esquivel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22626e6c1de79b2f93405794c6de447b28137164f8361339952e589c7ad86aff. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:41:33Z), 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/QMFME1317441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d889e5e1d4fe375ddd5720723f550941223bbf6bd72c51e9335f7e372f4e396. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QMFME1317442.
Other World, Other Sounds (Music for Dancing, for Listening - For Your Pleasure)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4ef8e25c0be0664eb25e0c4bff5d9fc6ef4feed8eba05ac0c8382209776735. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/MXF019601913.
Juan García Esquivel y Su Orquesta Sonorama
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e02335143e418c51416535347b61bf9ae534423640459fecd5af2c1f091574c. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USCXG1600503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c9a66e71d677cba0fcc63e242d24cb10152eb7750695e1b7f2615698028c8ea. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USCXG1600510.
The Sound of Esquivel! / El Sonido de Esquivel! (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a2f882e97e1278073d3f4a78e047353ac2f08a7207193124e71df1b4782577. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEXO71940617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c8ce356984086f794928de113a8bb68bc388de57d267055638c377781db726. 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/AUXN22119697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80a7e365bfa758fb2b6a28316cfef39829f1caec46e56fc4811c5e7af88f4162. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/AUXN22119699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa1c986320b1aa929de1fd9f3a474af287e6af48d0ca182bd910ff1d6c96a3d. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/AUXN22147314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7210c8f0de78d1a68ac1b4aa618ee50158b9375460ba94fd3cc9345031d3632f. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/NLHR52131640.
Cabaret Tragico - Original Motion Picture Soundtrack
Strings on Fire - The Stereo-Orthophonic Sound of Esquivel!
Esquivel!'s Christmas Cocktail Party - Holiday Background Music
The Tarantino Selection: Music from His Movies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe84c0cd8bb55e1251ab56e8eabecd9dc915d79ae0e342d2ccc2d26d7462b4c00. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GB8XC2106077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667d0744cd5e6ed1dbe3fa44aa55fd083bf83d2d7c1671550e2b92b95e451b16. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GB8XC2106078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9106c30c65311b9d84c647000bb584a5660b69f9fd14aed89bdde6239d629d41. 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/MXF019900861.
Sentimental Journey - From "The Man from Hollywood"
Music from Quentin Taratino Movies (Original Recordings)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab36ef0ce091c665e82f8bd327fc9016d6399e8e82083ad292218194ffabc3ae. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/DEBL60553751.
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
Harlem Nocturne - From "The Man from Hollywood"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1071d43dc6fa41eb72babe089f1eec44b428b6012a6da90636c1b46233811b. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEBL60553752.
One for My Baby (And One More for the Road)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b2cf765955442c7f79ae6fa2e6ca7406a3a24b24021dea4bfff8b4f0dae6d6. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/USRE10101990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b0e32dc6a84261d1e9e007e85c7bab9d57c7c1c12e8b15e71d2022d256a07c. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QMBZ91354687.