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 0x6ab8da9605805bda8d2ca544af3b38d58e04f130d55d1ad32de16e605582da86. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bef2ae8a-5a23-4644-ab3e-f0d2fca30283.json and https://artists.proofprofile.net/proofs/artist/bef2ae8a-5a23-4644-ab3e-f0d2fca30283.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Xylophone Concertino: I. Allegro vivace (Arr. Simon Su Leong Kong for xylophone and Chinese orchestra)
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 0x02a53e957793aef7ab1dd6036484efec2252db9238cbee8963c1028640fd8de6. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/SEAEP1299060.
Xylophone Concertino: III. Presto (Arr. Simon Su Leong Kong for xylophone and Chinese orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8587d4a3a06f6ce590b11b12db8aefed0c40b3933c924666c70113ff28901e07. 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/SEAEP1299080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc5d5eaceaba2f93c95ca17ec86abbf7338ef197d4e3fe3ea9ceda579ee6e78. 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/SEAEK9998030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8db26c83b0cd8550ac69e2943a735cc69c2f967b5667f059dfdff8b2bef5263. 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/SEAEK9998040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3d2bb598c32fbb6a047de83a47bb58c67c48b7cb845ce2bd29787cdc273424. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/SEAEK9998070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac54852f3c3058bb238cbe5a11c04346cf9d8309c827ab2213021ed36455acb. 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/SEAEK9998110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2a1d33a3ae3d3b0cf2f7db29dcbc00f3c6ed5bddddb7896dd3126828c5782d. 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/SEAEK9998120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650b6bce1102abbfcddddbb478ad95c8aa14c52f4e867aa3eadc198cf8d79ebe. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/IEAQY1600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5da39ad6242fb4c718129afbaf0cb8218e1d155417b557f84154e1c55992a8f. 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/IEAQY1600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9206db4880b1d117a578f6efca74c7492d8a109f96933ff0ca8dbd323fc2764d. 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/IEAQY1600013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc133f5d0fcb4df4de16b09af68d8e6ca07f4ecca1bfc8401741c625c35e7570. 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/IEAQY1600019.
Libertango (Arr. for Marimba by Eric Sammut)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa9401acafdbcf491bc49cf8b2922ec87e0b683e68e4aac0b2866f081b956b8. 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/CH1402471904.
Gryc, S.M.: Passaggi / Zivkovic, N.J.: Tales From the Center of the Earth / Schwantner, J.: Recoil
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df75173c57507f84562308c3f434565a7058a72cb842f643a083bae67642a2f. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/MX2831300430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x951ad4b0fa9f6a17e54fab155fd002914c992bb257c02fec1590d310b41ca0a3. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/MX2831300436.
Milhaud, D.: Concerto for Marimba and Vibraphone, Op. 278 / Cortege Funebre / Symphoniette, Op. 363 / Radanovics, M.: Introversion
Generally Spoken It's Nothing But Rhythm
AMEB Percussion Series 1 Grade 2 (Piano Accompaniment)
AMEB Percussion Series 1 Grade 1 (Piano Accompaniment)
AMEB Percussion Series 1 Preliminary Grade (Piano Accompaniment)
United States Air Force Band of the Golden West: West Coast Impact