Viagra Boys is a Swedish post-punk band formed in Stockholm in 2015. The line-up currently consists of lead singer Sebastian Murphy alongside musicians Linus Hillborg (guitar), Elias Jungqvist (keyboa
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 0x4bc24a3f78a1addbe1995ea3d12bb600d445e56631d53d8735c31f6087b489ee. 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/d14f0b9a-6b3e-475e-b0a8-daf732a846b5.json and https://artists.proofprofile.net/proofs/artist/d14f0b9a-6b3e-475e-b0a8-daf732a846b5.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 0x98789e3b4d8f7f05b239042d1866cacff45390f67ef9f7d139ed1755df99f343. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/SE5AJ1600261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf18afc99cd573fbabcfe4323e2a9807f1e338d0ae246654b4000a4818b2392a. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/SE5AJ1600455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1af48a9a3f9848122dcabf98dcdc496555fc2480b61421a8bc72f3ab1c8fbd. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/SE5AJ1600462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb0451abca85d762e973c092c401737ae478a6b23f7517d6a6339a78a2150fe3. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/SE5AJ1600463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e75f0bceef02329ee93eba6df35b73358e647278407df5f19a864a57316b8d. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/SE5AJ2202321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc7cb3e4972f7a03a23265225f16deb14a91c796f5e0403a048115e0833dd6c. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/SE5AJ1600457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe416ade3808a27277f64d3854823d867cfa760db76652ce41dd7816778a25a22. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/SE5AJ1600464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b5212b2c031cd0a743a652a0fd471a38b100ba844c910d718b63e6a723b4c8. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/SE5AJ1600465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c6c2da5494ab5b8c35c61057cdcf7506ce6ad8bdc7c5561bdabc6e2b629e7f. Chain 2 (Bitcoin): anchored in block 957680 (2026-07-12T09:07:22Z), 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/SE5AJ1600456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f272ab3f3d74d4a2304b4fe33472a6b002ac64ed18cf9b4eecccbc5debff7a5. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T11:11:33Z), 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/SE5AJ1900846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11eb645c9497b17c0adb7db949f37fef8115a2ed62c1df6a64cfc75cf5172475. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:10:34Z), 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/SE5AJ2001172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11eb645c9497b17c0adb7db949f37fef8115a2ed62c1df6a64cfc75cf5172475. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/SE5AJ2001172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7555eb42c9c999d61e4c3c757f8d658a9defc1de4a6ddcab25454813edc4e07. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/SE5AJ2001177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d9a84b306339722faab53d511fd3fe8ac6e3d6765d63fea473adc9d2e4a692. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/SE5AJ2001184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11eb645c9497b17c0adb7db949f37fef8115a2ed62c1df6a64cfc75cf5172475. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/SE5AJ2001172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7555eb42c9c999d61e4c3c757f8d658a9defc1de4a6ddcab25454813edc4e07. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T08:05:22Z), 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/SE5AJ2001177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239a0aa6226648a859d1c019e9c8279ae75b878f110e491488b46e54661fa44b. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/SE5AJ2001182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d9a84b306339722faab53d511fd3fe8ac6e3d6765d63fea473adc9d2e4a692. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/SE5AJ2001184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11eb645c9497b17c0adb7db949f37fef8115a2ed62c1df6a64cfc75cf5172475. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/SE5AJ2001172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db6fd851030f5e98d591ad56f3fc996124dcdaf74377537eeaad3df45001a9b. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/SE5AJ2001175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0801e338bd53606e86080fcf65dc044544a055fe0f9e6845a789737bf0211816. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/SE5AJ2001179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a52bd112c62706ddef6a01b5d8cccbaa765d12baf0283c665a0553ea5c3496. 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/SE5AJ2201608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db6fd851030f5e98d591ad56f3fc996124dcdaf74377537eeaad3df45001a9b. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/SE5AJ2001175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e88a85335a58496d4851266805e981da26ff0663ac7210f96e6b3850c69573. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/SE5AJ2201612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4874c8e301846c9970b01160fe20a02dd1cac930a28c90a9dae507dc6a127bad. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/SE5AJ2201613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0801e338bd53606e86080fcf65dc044544a055fe0f9e6845a789737bf0211816. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/SE5AJ2001179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188cae6823ac6096500a66959abcb155e85b6575671dbacb01ae0fd55bc9d0b3. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/SE5AJ2201640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa677fde67e9ff3fe463247798db428c18173e3ad3318a324490d320766aedfba. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/SE5AJ2201635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf845eff221661b16ce0369a3fe48817d89ea409a98bb8d8a237690a2385b0df6. 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/SE5AJ2201628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f307b95eb8c677110022faa90ef342d1f2a84eeb56003ea78f3ddcb47a02c1. 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/SE5AJ2201623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3046ac8660a145cac8ab798d0df782239becaf01ba1dc7fdfc664449473911. Chain 2 (Bitcoin): anchored in block 957791 (2026-07-13T02:46:19Z), 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/SE5AJ2201636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0332c8ad1fc76c85650248173af7fd6ed542b7360e1370e7b510c4f0a330f832. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:09:52Z), 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/SE5AJ2201607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a52bd112c62706ddef6a01b5d8cccbaa765d12baf0283c665a0553ea5c3496. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/SE5AJ2201608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db6fd851030f5e98d591ad56f3fc996124dcdaf74377537eeaad3df45001a9b. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/SE5AJ2001175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d428554bb74cb5d42f843039449d274f90e01cc10fbfb0e075feef8cdc00d2. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/SE5AJ2201611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e88a85335a58496d4851266805e981da26ff0663ac7210f96e6b3850c69573. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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/SE5AJ2201612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4874c8e301846c9970b01160fe20a02dd1cac930a28c90a9dae507dc6a127bad. 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/SE5AJ2201613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d5b805039f4df91f37c20511f941da6ce1ae26e7a0a045cfbe8f537ce1aa92. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T23:02:06Z), 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/SE5AJ2202415.