Calm or CALM may refer to: Arts and entertainment Film and television "The Calm" (Arrow), an episode of Arrow The Calm (film), a 1980 film Calm, a fictional city in the Kiba (TV series) anime world
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 0x1405132f9b7e97c0dfb2687ea4ddb2c36388290ca470315d5ff789e2b068a60b. 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/64c3b7dd-04f5-4700-a0e6-e21f0140d603.json and https://artists.proofprofile.net/proofs/artist/64c3b7dd-04f5-4700-a0e6-e21f0140d603.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 0x5ab4888140c06b50be66e1a7767a7cdd57e021464745f8a2101eeac59166c416. 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/QZTB82407623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6810f06292f025451fec852b6b3a75133a80f8678080f37e075d5afa1733474f. 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/QZTB82407624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf152b580dfdbed29f3503bed91aacf00ee7708ca5880c20a375ba7775c1cb3a0. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/QZTB82407625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78caf299f4683f0b2c373bccd18d3e6ad24a8ac84feca3d362662fc48886b4a0. 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/QZWFH2418992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeedcb527750367d3fcf574c5e271bf095ade2ef5fa05265a0b9f8fa8ab0aab73. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZWFH2418993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69869a0f0d4d777001da24e92d3a6231d67c2333443e0ee71101b28e13bbede2. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/QZWFH2418994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc12fbf4972610cbbeafc903df4a6dac9f3020cbc1020532156b686c8b406c208. 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/QZWFH2418995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x995d59d5543ecb28e69842df79c6f020d95a07ecf0c48ebe13930df107e910e6. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZWFL2491523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccdd5ca64dac8523abc8bb6e4771e8cd9cc899f1d895afecba3bd6d758b19336. 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/QZWFL2491524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa03a8561d417abd563a3380ce1d63b552fdde515762e1811b000ce271e153fd4. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/QZWFL2491525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03767df06e4acf189096b922c5a9f4a1b4d08146bac7c0a7b9585f2d91ac3bf8. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZWFV2436136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x387bcccc81612735af8ab912c0f88cb754ceb71cf0013ea852dbaddf47b059c8. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/QZWFV2436137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34025528ff90c11ff341ebe33abd4c6d2a67f4a08dffe87a79dbabb85c4605b7. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QZWFV2436138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8efb67edcba3fdf130e1a1ca6f54bb50fea9e6ead7521f58ad6fc4cbcd3862b2. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZWFV2436139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed3f32869bc10020cb3bc913ce31a895ac9a49a31080b272831c5bbc0310f50. 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/QZZ7U2423256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3713cd6c77c1ae6166d8c7443798062ed949a73af28f30d40e1e430f886e8051. 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/QZZ7U2423257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf2443e3ca9732259c0d7385715c64578573e87012193715bd21099ffa08bb8. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZZ7U2423258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe39f9c53e2668889e0ddb70dd4f2a64d3899c8c89d6f4f9e5857f33e618344. 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/QZZ7U2423259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784613d7d60d2098fdeade3179dfa65e744018821f1f6dd6d43c99a6678d915d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZFZ72542871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75582c77b6b25c8638a37541cec88653336bbb940b0a102ab104513def30f17a. 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/QZFZ72542872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b0fdacf594cdfbc176a67926877c81cdde2e00d635728876eef2954f608f8c. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/QZFZ72542873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a447da4e651fa992c68fe213f909f57548d0bee0bec1788eaa53e54ab70da89. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/QZFZ72542874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4274de0eadc8df27176d6f7b593b9a196b16fe5ed78d719a5b16ee99489ca0c7. 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/QZHN92576374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d39453d3a5168eeb2bc2723e4c7e81e1d237726f7bc80299dfba3bbddfc2f6. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/QT3F42556107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb7f4695924be580d83bbb7f6c66a6095e10e7dfca44ed53ba5288bde85b3e44. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QT3F42556108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f720d1acecc66d34bc9ecfebdc792f27da26c6591f2a2be9ad1fe9a51ebb48a. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/QT3F42556109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c0910839edf4a8773984a64421922486d0728a004ed03539e19d99988816bbc. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QT3F42556110.