Hallur is an archaeological site located in the Haveri district (which was carved out of Dharwad district), in the Indian state of Karnataka.Kenneth A. R. Kennedy (2000), p272 Hallur, one of South Ind
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 0xc018ac8300031089b571051a2c0b7fa982d1f7cca80768ce124b985837d44f55. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8cfec644-639f-4ecc-aec3-93e5e159ffbd.json and https://artists.proofprofile.net/proofs/artist/8cfec644-639f-4ecc-aec3-93e5e159ffbd.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 0xdf28c5f72ce85f42b392f6d600ac49252017ba70699fdaa6b2549ffb96814cac. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TCACJ1550840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf711d8baf90bd24e189ab3ccbc4411ded91b5a47a57e80603ae067f64acaf5ff. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:29:39Z), 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/TCACJ1550842.
Enn Er Verðin Ung - (Duett Við Jessicu Joensen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734031786a2a25fc6957ed76bfb37741a77e35548762c55211b544124a8fa0e6. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/TCAFC2080763.
Vinir Eru Reyðargull (Duett Við Kristinu Bærendsen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ef70c7961f896e7b7f2e746b98e46819a242f2d43b60c49183a6a482c77af51. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCAFC2080773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4520dee1383f0729c6824630254222b31e56946cfa0def28c580a74629639d. 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/TCAFC2080791.