Trio may refer to: Music Groups Trio (music), an ensemble of three performers, or a composition for such an ensemble Jazz trio, pianist, double bassist, drummer Minuet and trio, a form in classica
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 0x96b0c0dee125aa32792de9de1c877107831f8dbce299ee9a5f7fb1b7d0e53a99. 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/83b0e76b-28d7-49b8-b881-5ef7689a83a0.json and https://artists.proofprofile.net/proofs/artist/83b0e76b-28d7-49b8-b881-5ef7689a83a0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x0f2e6e8baa52235e930ff81cc317cc1868d5ef523ba4f73a47fd5c16fb7896b8. 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/DEUM72116974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0ff4d99022a7ca8d69a91d65821111f2c024522337d932dbff64cb5b3c24ba. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:45:04Z), 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/DEUM72116987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3230e0d4e4d9c4551750522d5babcbc90d1a9ef843fc60dc0f109344712e5f93. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:28:19Z), 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/DEUM72116980.
Ja ja wo gehts lank Peter Pank schönen Dank - Remastered 2003
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fdacf0d1c5c2ac9f420ff60dad21b3f071c447a2552d97ff655f859b23fc280. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/DEUM72116981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7657908d781330c0faef928f9fdfe4c2d7b3d504f6ccf394dbb4f3f44d3d7b67. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:07:41Z), 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/DEUM72116984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6474f8c2c473a8c0ed195b3685afc0b3af1ff49083b1ffd48f5c5c637b2b35f7. 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/DEF078102700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f2762ef4b7b5932178af7a0647a375cefc224d6011173547831829233e1d12. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/DEF078102690.
Anna - Lassmichreinlassmichraus (7" Version)
Da Da Da I Don't Love You You Don't Love Me Aha Aha Aha - Long Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50cd5621e03852a7259299b5af90b81961c76ef8b829385eb6965d19d60135df. 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/USMR18280123.
Da Da Da ich lieb dich nicht du liebst mich nicht Aha Aha Aha - Live At Mauseloch, Stuttgart / 1982
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073a9ee240c3353b50b0051c1dbef3a2de803a3902fd094becd7088a380d4c24. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/DEF078200170.
Anna - Lassmichreinlassmichraus (12" Version)
Da da da ich lieb dich nicht du liebst mich nicht aha aha aha (12" Version)
Da da da ich lieb dich nicht du liebst mich nicht aha aha aha (7" Version)
Herz ist Trumpf (Dann rufst du an...) [7" Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f57d819d52a423e167b28e731cda339ab9e179cf47f96b7570a54d0dcf8820. 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/DEF078303180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad3eeb40527bb2065272f44a7eb58fe53b8abe4b424f4c1725a75c7ff55634d. 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/DEF078303140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0a2b981b626083e1a3c5be94938dcc4545f6a7f0ebdade437c67c143898e05. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/DEF078303160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d16845c9b778d6d15344b8dece95941554a6918864b6f9cc006e13606aeccd. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:10:52Z), 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/DEF078303170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e2addb929dc145ee678ae247ff24cef442251f3a396ffc3d4b0213ee962f6f9. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/DEF078303650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a00d233975e1c7da1b7eecbe9e92dd47a70b0f86a05d336057270600580bb99. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/DEF078303210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a518c70755a0cd4b3ae65dc1c1191fc843f18ab51ac028cbe5058647d0f479. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DEF078303620.
Anna - Lassmichreinlassmichraus - Single Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ad17f52373c4b47b9bcd97e0fbec20f6e01e1c4069e5bd50dae7bdc7d66fb8. Chain 2 (Bitcoin): anchored in block 958535 (2026-07-18T09:42:49Z), 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/DEF078202680.
Turaluraluralu - Ich mach BuBu was machst du (7" Version)
Tooralooralooraloo - Is It Old & Is It New (7" Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e3a4a8c1f5f1f57ce71dbf4681edca304d9a72a0fd36236b8996100d7dc591. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/DEF078102770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5688be9afa9a09acf146045360758fd74b4dd25ded1407fb72fada8a460b166. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/DEF078102780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83d77174210169d4d063f3a1d5b8b08e0c6cba8352adcf642c147f2d8a0f7a18. 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/DEF078102800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b50541b12ad871606470affab6c00f6b9886d7a84fc0b209f891e6ad7291ee7. 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/DEF078102790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99102e1fb1e434c5c354049af72a1d08f6009fdb5c5a004a7b8e3b184703e243. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/DEF078503170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17b2e7828b5775b482f266469c6200da534ad9deb8b904f5786651bcf2472bc. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:28:41Z), 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/DEF078102750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d16845c9b778d6d15344b8dece95941554a6918864b6f9cc006e13606aeccd. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T03:01:25Z), 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/DEF078303170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e58c6e8c70804b926437e3a8788e4868875e514d15a34ace8420bc208805fbe. 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/DEF078303220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5688be9afa9a09acf146045360758fd74b4dd25ded1407fb72fada8a460b166. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/DEF078102780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40b0211c5e0906e812682fdade2ccea8cf5e552fd46f5b952f80c47a45b824e. 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/DEN120000130.