Shironamhin (English: "Untitled") is a Bangladeshi rock band formed in Dhaka on 14 April 1996. Following as a rock group emerging from Dhaka's underground music in the late 1990s, they were distinguis
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 0xc9bed0c0f27f6b844f1b44c9333a472900c2950c317d03f2196398339e6e0e8f. 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/8c19fe3d-8289-42cb-a783-c4847a2d4456.json and https://artists.proofprofile.net/proofs/artist/8c19fe3d-8289-42cb-a783-c4847a2d4456.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47387c27ac9a912a1d8660bc1dab81fcdbfc899c36921a7a1140c039650d4722. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/QZSYP2234367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62ef0016962ecb2adff0bf77f93105c6737cf0c15d32329698a357a7639181c. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:16:07Z), 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/QZSYP2204292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1847f79e80fafb7e10f505f0e240080e8dfa6931de4b972f1ec95c33a423061b. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:09:36Z), 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/QZSYP2241220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262cc186941f952e751664953f58e84917b91c7007ebb0a9f2f40aca6d91629b. 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/QZS7J2266982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e4892f67bf7ce239050688e212daeeeb8736c34fc556f675a40fba7638c293. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZS7J2205873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a0c86c1f872164db2c72af569c0186c00b791ea6e30dc72694c390168a74b4f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZS7J2298272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40491cb2a9bd50276a3929a2beb38f02c75127142ee46205c8e2670555273a6b. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZS7J2212180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1564ffaca40e1582a9f48f0af3e7a2e12f3f6f5cec104bb30fe9fcb4b381402b. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/QZTLA2330193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe0a7a83efb96c3af5bfad19cb744cb2eda3a86d3a0359d76a9038c8fc99abb8. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZTLA2360064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185dabbb000131c43390ebed5bfc041609aaaa8a14356f39ecf2caf1f61391c2. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZTLA2318551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2cbfab1f92d2866b2a4aa5389917ddcb975a6fc6c60f83c1883bea628c6c215. 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/QZTLA2364324.
The Only Headliner (25th Anniversary Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892bad6826a227514beb6bfda366d7f85ec9c1999689bedbe47721afc6427ec7. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/DGA0Q2375716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac9f347f3847d52eeb5f739ab93aa2cf0abc9223540badf0711f38ced9cb406. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/DGA0Q2375717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76248b43eebe2552d0bfcec75fb056524540a4d05f1daa9e500f52e91a6d4d73. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/DGA0Q2375708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19d938489819a488ed5ac779f1ec4b4978ff51246eb5f238b57cd9753899c1cd. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DGA0Q2375709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d87327b24c65fe39257643372633e1c199171342d5d4e4992c9032b415bd65. Chain 2 (Bitcoin): anchored in block 959003 (2026-07-21T14:40:15Z), 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/DGA0Q2394988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a13f7a282a4431002db730017a3e2e62e087da6b822b07463747aba8c8f2c30. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FR2X42407553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6836e64ab76d156997941d3f2858f27b574b491416e4a36d88466c2010ae22. 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/DGA062559694.