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 0x1effd14a24924dbee4a09a5a62b34c99a517d9a7e39fcf92d1e14cbe8291cfdb. 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/032b67d7-c3a5-48cf-8e5f-047a60b824dc.json and https://artists.proofprofile.net/proofs/artist/032b67d7-c3a5-48cf-8e5f-047a60b824dc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Degung Klasik Kacapi Suling Serat Salira
Fresh & Relax, Vol. 2 (Sundanese Instrumental Kacapi Suling)
Fresh & Relax, Vol. 1 (Sundanese Instrumental Kacapi Suling)
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 0xe1b9d03707c7201ad5cedfd4d179c7cc2032369451867bb2673fbd7defed6053. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/FRX871592897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e17e9bf45efc13a7c0ac01fc17efec496f53d8176789cfed206a9a6004e1e47. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FRX871592898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d9e12d96d9a29f037346a6bfb79c49f0ce72310186ee39bbd463507f013c47. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/FRX871592900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63cb0de4211241259cdb0e61a16426270d8781b44264ad4188bd2dfe2f8f2932. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/FRX871592905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7117fdca24e07f876798e93bacdc0a49c960cd21c500f7d6178b220c75789b27. 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/FRX871592906.
Degung - Sabilulungan (feat. Ls Kencana Sari) [Sundanese Instrumental]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x684b20c84cee23af6dc68e5328f19deaa39f5882c0bf4a03ffe276c58fb2eddd. 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/FR59R1535357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4458cc98631de4b18ebde8ab4050e8fb6ca60130a35fdd36a207ab5c1a3252e2. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FR59R1535358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089cb367c1990b17c81b2ffdb9ea8948347811a75b2c01fe388d410829d8a251. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/FR59R1535359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf003be6c1898acda440e062a4a04a485b8939f835c0201a9a18f17864aa52347. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/FR59R1535360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x999dd4b1fc5ddea78db4bad764d3e18fbdc9cb7dd325eb7c36f2fda0d4f8b1b7. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/FR59R1535361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19c9b92b9151e7f72b3fdc00b339848f1bd04045b42943d3490dc2b79fab50f. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/FR59R1535365.
Degung & Kacapi Suling (feat. Ls Kencana Sari) [Sundanese Traditional Music]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac100f04c857c5229aac4f9d92f543ab863e18de46a2f9174e2b017ee9b6d5aa. 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/FR59R1542828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7eaf8f0556ae992ebdc53a6ceb40f66e732e00448a8d84a37f82f50ac5a64f. 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/FR59R1542830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4266dcc8b507ca858eddcca2389fdd433f0129a1d9f8cb728d75f11514d2d0. 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/FR59R1542831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x712a8b44c13fdda47ef4aac55999654a90eec09505c84b29d8b8ef8b3f8e809e. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/FR59R1542832.
Upacara Penganten Sunda | Kacapi Suling | Sundanese Traditional Wedding Ceremony
Upacara Penganten Sunda - Kacapi Suling (Sundanese Traditional Wedding Ceremony)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb070686d0be4754e7c4df6df0d909f78f7ffcf355c498e1b8fbf2170ce6b4432. 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/FRX201559484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a46ee62e21f30e93aa5a03b5bf5d841bef5fdb0eab6f1916d114efd02abfcc2. 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/FRX201559486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92e4c197891445691063c9080270d2f4af117ba31500d3aa5466d191a5de4f7. 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/FRX201559487.
Kecapi Suling Pop Sunda Mawar Bodas (feat. Ls Kencana Sari) [Sundanese Instrumental]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d8f5c2df5b33c2199fca6d8e638e1d4a7a450014ba4fa6c05c41774515dd712. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/FRX871511465.
Kecapi Suling Pop Sunda Ulah Ceurik (Sundanese Instrumental)
The Best Degung Classic, Vol. 1 (Sundanese Instrumental)