Calmon is a municipality in the state of Santa Catarina in the South region of Brazil. See also List of municipalities in Santa Catarina References Category:Municipalities in Santa Catarina (state)
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 0x186aa3c13c4a7a4326a8fcf4729c74236138653eaad6577941daea062fefcda9. 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/021a8f1d-cceb-4403-b49a-99f306efacf5.json and https://artists.proofprofile.net/proofs/artist/021a8f1d-cceb-4403-b49a-99f306efacf5.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 0x0a17bbc16ca22be6dd92800af6de0390ee4e11deaf5ea447001b545f8158cf31. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:42:27Z), 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/BRVR10700635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf2c4f3b0a3c6219d0f21970bbf70cdc3812fc9d8c7628d5f4a64f5ac671d7c1. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:02:25Z), 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/BRVR10700640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05e651da2593a4e733ceded09c8ac17a05dd5e8a8e0ac5419e12e5381535f56. Chain 2 (Bitcoin): anchored in block 957676 (2026-07-12T08:20:25Z), 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/BRVR10900682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae59c5811ae859b201d4a084cce6018075ecb86f4ae7669bb4043e939c83a12. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/QMFME1987945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca719d892f982f9bd1b31082a568b5bb947bf4d01a793b359083e3954d38f3d. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T13:26:15Z), 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/QMFME1987952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa7cfa4e5adcc758fb560d2537fe9e4c9a52bd91e2e6b68d117b304e0cc173e. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:04:12Z), 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/BRVR10900679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0da4b13d3ba69d22859b3ac8c4ecb02cac41211cb8bf78810854ae73f30bde0d. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/BRVR10900680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c56177d0a3d4f3c027c4b355d92551a88e45513b21724ff672c9bbaaa90ce8. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/BRVR10900685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87dda746173f108f7be5bc8c393b75294fa8eff56a28c7cfea53d20893cb09c3. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:29:21Z), 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/BRVR10900689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ef93c2a8030cfb86ead572c7a3cd4f9aa6126705e7ecba339a3b7830d05a8be. 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/BRILA0300646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603822cd73f1d6eac9740d6c0a1ed12ca238c8c5b1a8645e791cbdda036618d8. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/TCAHL2353015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17299411a965e1a5af46bd0221abfcc0b86d35ef023ab896b910117ff145c953. 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/TCAHL2352767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b858a4508b800320fb37c48fc288ade9a29df2964fcd4a5db242b2d3f6d24c0. 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/TCAHL2352776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90c88cfe58cc90c206abb68235c2eba151f6c1307fb507ede7238c4255344182. 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/TCAHL2352784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511e9f0d0d484332f5c2a32e673a00893ab708752dc30fba7315c4a575d33c51. 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/TCAHL2352800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf6476aed973737af8f04c7f36ea1e01e594cec492639430a99c78541fd7ed9a. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:31:03Z), 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/TCAHL2352809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07bdfaaba2ef581ee3ddc3960424d21cea57733e8a1acc701c2384f3f64590b. 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/TCAHL2352813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb43a30384202c4781ff35f587ba0c1abd14e1e5faf53a4450f95d64ab5db688. 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/TCAHL2352843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0f39c7b1d067df13a45bee78b25d8219334af99eb191098bf85c25f85f0d5c. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:43:35Z), 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/TCAHL2352853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda814fb26325f320128f12103e9e6d6b57f27e1f938db7923bb3a8412f6200e2. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:03:40Z), 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/TCAHN2370221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa522e058d648bc1a518eeeeb079096d2b9dec6e75629c9f4807c8f310eabeffa. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/TCAHN2370233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff8c46b7ef6b6b8c721456cb6ef3e8e7c4ad428c584b9a4f0e613cd8f184433. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:12:28Z), 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/TCAHN2370242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf183cba52af3c8ec467461431eb13a0290feda7b9153d09e5918ace7f8446e5e. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/TCAHL2360423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0de9195cd9c90c0bc4b5cdd8d4f1c9ab9dee1c8202f28b58dff447c839d3ef1. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/TCAHL2360432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b08feda7e0984fb6961ad9eade90512777afd8f02e323245a5344cbc713812. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/TCAHL2360839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f4042381b3141d92a496f9bcadda44e60164c479ef37081f0028d3f001f6e3. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/BRF2G1800284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x195bdd289c57456bf16c4d528467bf41684c7cd6f88e85d1e8db38dfae9d2460. 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/BRF2G1800274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe325562f25607d26eb04445325b9d07274cc20d1f154fe88b631d136dd07297c. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/BRF2G2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e5bc82e3e50d07ac5b9bc3b6f0382586619f9ac70ebd54ecf736c7770c921b. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T03:53:56Z), 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/TCAIM2402038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd0049af4941eb1583e4cad1458327b00852ee2291d97a9154bf39d990af717. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BXV961800119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2c682a36132177713b1de62bfa032a874c333e2eacb501b6d3a849f78ed797. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/TCAIC2444500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364191d53cf3b049dc79f0eac7922e56e929f113cb1ef9ae81ff5bd9af436a51. 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/QM4TW1835648.