Haustor (transl. Passageway) was a Yugoslav rock band formed in Zagreb in 1979. Haustor is considered one of the most prominent bands of the Yugoslav new wave scene, as well as one of the most notable
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 0xa8c3dba0f1e9b93c1cb46b0df913ae30c05c8d7ff2f1424fa7795203e6d78995. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6a066ad1-d30e-4512-907d-6732abeea57d.json and https://artists.proofprofile.net/proofs/artist/6a066ad1-d30e-4512-907d-6732abeea57d.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 0x353d91383d77b713f00ffe7124cb723ef1c957ab01c1d668d2b522379c499915. 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/HRA048532987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83dba02f015de22fe75b08faccf766bf804c0d51f444701b080deb8e1552bea1. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/HRA048820040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c0544988d070a9ad9bb9959c0eab43acb54952506a0d53e8220a11ab5011cd. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/HRA048820042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde75d6260020d4851e491f4b0912172c8aa4f8fb743ea3e840a2e7f1809e8d8e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/HRA048820043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1cf677bbdc699ea94a3a3155d947c80724737a9c9f537dc2f39c919b03afe9. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/HRA048820045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6864958d1fdc79727f174e23104cadad66e445b0c92692f5eef9087314610941. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/HRA048820047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x774ba44ca1f36109098e3a9aa7146a07bce0a6da8572cb42dac3394e3fbc0a65. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/HRA048332982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c431d00b5414d1c7c28ca9949f6a3140b927d2e8ca223a052b7c1d80c2eab38. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/HRA048332986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b51726967a812340510d4cc96b5bcd8e6bf0ddb3dad90f55c469608ca80ae6. 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/HRA048332991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x418c8b8b92ee60abc47f0e92f13db0e1fb681d15aa7cdd21ce8ce44321f2b30a. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/HRA048134842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cfbb777b5209a7c7dc74f78e6ecb5a5f96c0841ddb8e0d4dff9306e23bb3463. 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/HRA048134849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c584e99cad7a3f59a7936cb8754a36fb4d56493302b339c8584fb5bfdb8feb. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/HRA040822071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66642e82b12b9c1e8e26be601b9ff18b3ac86e8b18479be02414f07ffb29a5d. 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/HRA048134846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc29510636e62616e5efce36d812bad1aba2620fcfbe7edaf647f0e72d6100d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-20T12:09:59Z), 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/HRA048432983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde54cdb8115080901417b39fd25bdbdbf20b657063eabafde3131c688c8498a4. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/HRA048422070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dd8830090dde1d882da0456a0b9268db4e904be593a6a7ec9c17bdba93c063b. 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/HRA042199934.
Zadnji Pogled Na Jeršaleim - Remaster 2021
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91fc584fc0e291abb292c9fa2bc6292123a4311c9f490a7ee7a14d13511fce2e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/HRA042199937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd562ac2e9a1f1c1cacca721ac1b5cffc6593ac9f646cdfadc56c3365f75817. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/HRA042199940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e073fd582e80cc9e29e7a1c9d1a0305c685a0319f2e2ef19055b86bc67f746. 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/HRA042199938.
Radnička Klasa Odlazi U Raj - Remaster 2021
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab065459711bc214b6b378e995da731da9eba01ec8380659469c4b45db6a1978. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/HRA042199939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc0e351d43327cf533c34c8fd5f7f1dce3afc6992b92e8902bd0de993336550. 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/HRA042199941.
Skriven Iza Lažnih Imena - Remaster 2021
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x385c0dc4dedbaaf29cb87d7b5f1f9953341746703a78473a6f2cec6b45b4a446. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:52:33Z), 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/HRA042199942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52cbed6a399811fa105f17e4ee681cf19b4db49df6db0eeb45904f1943453032. 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/HRA042199943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x698d9fbdc84161ff054439a7f3851fcb7c5f005c61194f8a58162cebebff9f16. 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/HRA042500323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62cec0ba4ec02fb01fca490104ff10e0f408c538811d994dbd8b576cd343ddab. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/HRA048132980.