Voice Male is a six-man contemporary a cappella group based in Utah. The group performs covers of contemporary popular songs as well as traditional Latter-day Saint music and some original material. V
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 0xbba18025e3d7ad4229013e2b2811e77a5db4cf7cd5ddceb9ac1d9b078d6e0c04. 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/f3f7ed3c-019f-48a2-98ec-2ce89941f78c.json and https://artists.proofprofile.net/proofs/artist/f3f7ed3c-019f-48a2-98ec-2ce89941f78c.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 0xb96a9ec252aab271f9e5378bc26d067d3c6e2f47f127fe4f06011e69df7ba2ac. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USR7D0800701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc397543fc8da5fb937e7b31d24a60a3f1598689d0d6c065a7e3b0fa24cff414a. 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/USR7D0800702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x713e19b746e7acd04a905f0212b9e10892c400d78a86a70a1792ae99e612c1f9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USR7D0800703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4ff14327ba67fce4c3f503e344dec037c9007b80fcc9fd4d7d43d34cca0f4c. 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/USR7D0800704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e8fbb6cd141a3576f7fb907accd9062850635befdd221d27da9611152685ec5. 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/USR7D0800705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a7d4ba6bc58be00dc07ec00c6cb56182a7ea6359792db0203d3fda97704e2c. 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/USR7D0800706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8173830e6b7b51c64247e524bdee1ff6e53e96dc95fc658ca1c1d73588ca031f. 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/USR7D0800707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea46b49002a2129617d43e9c49fde2622519ccc40feb6773fdd74ff8ca5e976a. 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/USR7D0800708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f596a88dcf8f30e6e7643dfd741bc8f5fb13f8c56b98404eb36f53c4296cb5e. 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/USR7D0800709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe636cf3269259e20d127793d1516089d20020a50a02178e37787ba9f75a86a42. 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/USR7D0800710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7584c097c1b12ecf26fedd6ff08dc16fb8f9965bced9388c0188d100b358d8b8. 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/USR7D0800711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa2639e96e85c52746d7920664b540df232165729b4efcdccc5ed1557212604. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USR7D0800712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62932147bdd3edf48a51bfa173d030717f690e0e785715dbf29bc9f7eb4d2624. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TRBDY1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d901d6de016a7cab2fef7e70477d2be2dfe3f53956459942fe1fb95549a60ab. 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/TRBDY1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2883b97b7423d017dd102038a52494b6a50dcd32bd6aeb1df3bfb3c7a172015e. 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/TRBDY1700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b6c50fd1e2c41f6165a208a9ea3919a0058baae35b0e3529fb036cd9d6ef3f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TRBDY1700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525771485ce0850003fe72cb558409f84964bc99c555854c9f6febda5797af9a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TRBDY1700011.