Safet Isović (; 8 January 1936 – 2 September 2007) was a Bosnian singer who performed the Bosnian traditional music sevdalinka. Early life and family Isović was born into a Bosniak family in Bileća,
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 0xab4c8a8bca6f16da23be82c03454b47ee53839fb407fd4de74be90fea1fb9065. 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/1fbf6763-4405-4547-b6a9-f18125be3fac.json and https://artists.proofprofile.net/proofs/artist/1fbf6763-4405-4547-b6a9-f18125be3fac.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 0x2be47ff4894b7a551b8c299aab2c7f123dd78f3b3bfcc2e2653cec0c821f9745. 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/HRA047151540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb602e3ed7d251b4a6a48d33590e317fb5d65d363943f16f0ab3f8ce55697475. 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/HRA047151537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fac529f6b02fe3685136fde4585af6249d5bea05f99329123ef82870ba5cab8. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/HRA046252984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x924a0e3839e2cee543e89eba5f9be74ddef369f69d6a0a0b37ea0b0ec3b31615. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/HRA047553482.
Safet Isović, Bosanske Sevdalinke 1957 - 1961
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe61bfebaedd25b494bf1b77169f97eea376f1c0f63141b0bb36482bff9f555e3. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/QM6MZ1475178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18beeb22390aab31700cc10ca50e96682e19d13bdf6dd2b2a388a7fac043946d. 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/QM6MZ1475196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea99eedc138b92151c843940ff4ff680346061c27fcc54dbe4763a85c76da4f. 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/RSA0G1703186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5707082b76dcb1d78a4ab0c62827982dcdc2031e80d7e4495dbcbbb02f682ff4. 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/RSA0G1703188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x757671190f1e04cfe5fe9318d6df53cac78be7b3ed14c1fe93865f55e670e993. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/RSA0G1703189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbdb935f42c425af6eaf961978bbcd4b5783d127f2a04ec0e73369db623eb9f6. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/RSA0G1703191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3370d748731b5fb115e3906f70651227dc8864b94c0f12729a2322850312fb8c. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/RSA0G1703194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc39be6fc437a56363ec027e17e9933b6317a2815e36342f7f17833779a2486ec. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/RSA0G1703195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8d17ad7bf11ef2517d94d6ca6cb37eeb4b5e07e1abc37a840436f5f07f933b. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/RSA0G1703197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc74a4752122662d1bdfb4374455a9e5e14ac356be86c7869b0419608346aeb0b. 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/RSA0G1703199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8697126f82d752df9e20b1dd92bfe0c2313859dd340211dbec5891a625768365. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/DEKB72433609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61bc3c38a43cd0d248dd6a39cd65f5d7fb01cb6e33897b4d7604d1245b83aecc. 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/DEKB72433373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9fdb766a4907889509d87a2d607315220091d667bc0f8ed249b87896f2dc2e0. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/DEKB72433631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e31a557717f525de0c0b05d6ab78edccc098f9bf00b41b885128186b365517. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/DEKB72433375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1cd569bc93db9a712dbaa7a3c72023024e09e3e82efb47f8834220d295d1040. 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/DEKB72433401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0412a43f76ebc9cbf4ac081312d443079b1d31e4668972511c07cb5dd9ffcbdd. 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/DEKB72433548.