Kala or Kalah may refer to: Sanskrit words Kāla, meaning 'time' or 'black', and in various Indian religions the personification of time as a deity an epithet of the Hindu god Yama an epithet of the
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 0x9d862ad3d04038c597f51b6d85bf1c2629d4f3bdfb1d77fcd7e407302a78f213. 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/fc8a7ae7-1ab6-48fc-bcf0-09b197c7a25e.json and https://artists.proofprofile.net/proofs/artist/fc8a7ae7-1ab6-48fc-bcf0-09b197c7a25e.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 0xf09de410ef9860e46f39c4852102add8769e614e517e1108f41cc9ec142ba225. 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/GBLV61526279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51178c00993b6bffe9b739928cfd85f3f8d3ba61ced3eab7cfe4111f9fabe82c. 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/GBLV61805489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfcfbfb92b889ca53645a663d854ab29cc8e2fabb27918db9c126c0d950136b1. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/GBLV62009337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84fe22402f03009c3eaf7cd265ee5bcf84f271ef17f922f563dbe75ca5b22b6. 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/GBLV62200813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0483c52197ddb1e8a2a49a18a46fbd08e3c024d0379c8e08d3e90670e96e0bcf. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/GBLV62200814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f5b02bddbd3195c236a10fb55691b4a98dc3ffe8d4f10b2224a940e1df4a70. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/GBKQU2493325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa40a0f51c57c1ef82ebbb66cb00adafb4eb2c6e9ab34ac5da2cbeb5533d9250. 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/GBKQU2493326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab1b32ee7d5e82ca98f1a40b1ed866beb4423c5512e301187cbc06032d51c17. 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/GBKQU2493327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdaa7d33606262437f1e843b3f28b07020538cdc8e323c0f2e1f1bbd9f2acb19. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/GBKQU2493328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0937040c09724a2476421a9116da30f126578f6a1e5ded59516dbcef7517917. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/GBKQU2493329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d97544399226013152dd9494a33ca94e26a622a54958b27db06b96d6d43feff. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/GBKQU2493330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6605155767b4cfab7eebf3a84a37817bcc062c8e566c3e192a3aaf71b3ce8f93. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/GBKQU2493332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f59464afe64651573427ff802f488b5b699808e797d82b0a9317456de39432. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU1741894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2023c4079e921579b76c64536a93827294ed90af384019b52bb6790d1d93c05. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USA2P1683820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747710b66468b710ea2752e49b0ac9f3f5cd5ae72d6560230406d841f3d6dfc7. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBLV62123135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x549fc13fecfe17d435c19d2971f65c03a8238ae9bd54e9edae21eb5d319b13bf. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBKQU1972317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69698e012db8fc96642ebcf3816686bb53eb5e89586be3b6e9da1bfe3cf59828. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBKQU2062347.
Free Earth & Forestdelic Present: EARTH ODYSSEY
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f020f928377f820ce7abac95ed3c445304fb78b69b9cb145fc87fa0ffcbbd21. 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/GBKQU2463333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf758abba96a9470ddb999b52e2e3a6b624cf50d7bac7d04752ac5c2959071130. 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/GBLV61925034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501f84ae98183f1468d738e765533bdfd29f71aa0090be9ed95775815797e623. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU2087283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbecc2307fd25bdf01eac75dd574bf2c311d0674db256c425fb4ff82aa51300d4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEAR42290875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4adaeaa5d3e6a9c61b0eb288500791b77d5edcf6f1d0802a862ad70bf55f04e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU1867080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd91ff4323cf55e5054c21ef6c4eac028c603be9af27df50eae2e0b504619dbd4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBLV61507311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024f3fa3509cbe21a6e4f2583e6f1f9295515f292a12caa2fe1e7948fc7fb659. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBLV61726645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7790bb0268ca4b061cc9bb84747ffabc4ed8137a8e8957f972d72205fecce0b1. 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/GBKQU1784360.