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 0xccd7944f7039b4a83f7e553acb3a8525171e38bf10dbceec6450c44e71cbe1cf. Chain 2 (Bitcoin): anchored in block 953999 (2026-06-16T20:20:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/316e8f71-f839-48bd-ba40-4c7a213ea88f.json and https://artists.proofprofile.net/proofs/artist/316e8f71-f839-48bd-ba40-4c7a213ea88f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Huckleberry Finn Suite Op. 33: I. A Lazy Town
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 0x1523652c3716aa31c7bdf94862cc01186879d01aebf699456067d8cc17a53cc8. 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/JPG200709178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c093b072dea722a9108ba28b2dbc4353596a174ccf3cd57ca581ddacca46865. 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/JPG200709179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8431eaccd9f685de12e8f6c80356834e4f9801b1b8ad5b5637b70ea025561f1e. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/JPG200709176.
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
Japan Air Self-Defense Force Western Air Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa47f61f451782a600b8f4f882299692b741bc1fe7b4f59f78d9572d384c5c14. 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/JPG600811003.
Tokai University Takanawadai Senior High School Wind Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235b294acdec92d2272eee85a620c4553f52c81a16fc6f58de72d8294427710f. 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/JPG600608104.
Selections from "Der Vogelhändler" (Arr. E. Suzuki for Wind Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e4dddfe50f235ba99fbdef42517581f6a180bd4aa679b0e1e971632ea12b49. 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/JPG600608105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892d2a29f08e80089bfca6c9a30c07c36a068a10fa78078ec265dabeac3c650b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPG600608106.
2019 Texas Music Educators Association (TMEA): Saitama Sakae Wind Orchestra [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc815ba93e36629fdd4f296439a1fd213964d261a3d1dd778bee18ec5eb190555. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPG600405202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d5c246c53c286b26842ee8e18a0d1c5a1562eb4b745db3ec1b431a750e33dff. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/JPG600405203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48669833250b1ba11c44fbceaa1980ff9c503a304a69e3db4b05845527bc183. 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/JPG600405204.
Japan Air Self-Defense Force Central Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b00ffdcdbb856486ac6bc2d177430744da89399a56f469e92131dec9d90d0f. 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/JPG601116301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41d8aff38d2b3aa5aea5c0a9d3332df644251446094480a12c8451c6dce0ff02. 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/JPG601116314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd39bd8385756e8b058cfbfadd7b6faad5733e5c8f307027b58cf92861f61d2cb. 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/JPG600912906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087a6b8d73547431040d6231747fa306ce74494367b6a90f8d739e22fa52fedd. 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/JPG600912907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd05828c269fd55c22d5f81e6841000f048f653cb1e2cc70b1fd8143d096a02. 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/JPG601218103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9918b57e351efd2abf6891cb2c6c16240733fa965f1f8e5c60f0261126935dc0. 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/JPG601218110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x777b958ebb4beeb293219462c167bed0b0ea87f2830f0e62720a71c32c919a3f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPG601014801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc741d1afd5ec01fec76f819725238052b852784345cbd1b56532fc461b3405. 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/JPG601014807.
Japan Maritime Self-Defense Force Tokyo Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d85cf7d0bc9fcf058c1d0e2dd3a8880a9b605e0abab35313ec578dec270453. 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/JPG601320013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9b43e1b04f5147c39de396589aa835481ace61a8246a1be3fe5395cca5e991. 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/JPG601522801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10dbced5b8a15e74eda71b40cd6bb04e06166dc3333a493d5d84db263386564f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPG601624501.
The Phantom of the Opera (Arr. P. Murtha for Wind Ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d00c228928b304b699d506e9d57cef3b06425017f3b4d25f8ecb486959fb8d. 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/JPG600608006.
1999 WASBE Cincinnati, USA: Philharmonic Winds OSAKAN
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d1e0ef67e106fae7e885ebdcb3db6d5bbb1baca3a7e251ba56f3460a444036. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEZC62134686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e17c1a3ea842969b91047b5293ac369fba68bc9bb1bebdeddb5cf64b2b3ac3. 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/DEZC62134688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0588281150c98cfcced099051c422990839f12ed3f6932f15ce16b1f45f7580. 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/DEZC62134690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076ab68d4f6f47c9c3cf0cf468334eb30a5e36737a675101d1e1b7aabea5ba07. Chain 2 (Bitcoin): anchored in block 959146 (2026-07-22T18:04:51Z), 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/DEZC62134691.
The Works of Masanori Taruya Vol.1 - The path below the moon
Archangel Raphael who leaves a house of Tobias
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d80ee6fc972aa7dc3baec1f2a5746536a05a723b5ca94d882989ef19d730e12. 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/TCJPL2096481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb56eb3beb9801f9c6beddd568786172690b3b87bf4500c9f921c33d2da7d851. 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/TCJPL2096482.
Small wind band repertory for competitions volume 2 - Song of Stratus
Small wind band repertory for competitions volume 4
The Works of Masanori Taruya Vol.2 - Soul of eight to samusara
Small wind band repertory for competitions volume 3
Small wind band repertory for competitions volume 5 - FUSHIKADEN
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087a6b8d73547431040d6231747fa306ce74494367b6a90f8d739e22fa52fedd. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPG600912907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48669833250b1ba11c44fbceaa1980ff9c503a304a69e3db4b05845527bc183. 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/JPG600405204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca6c2ff6dc278f828ed951813f67493809e2a2433511b3bce39c2945ad7ff6f. 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/JPG601421408.