Signum is Latin for "sign" and may refer to: Brands and companies Integra Signum, a (defunct) Swiss railroad signaling company Integra-Signum, a train protection system Opel Signum, an Opel car mo
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 0x52214514eeb2f1b54ca1382f5d1aa85351895cf863d35d42048428ec19a8b3b6. 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/1dfad83e-77c1-4f35-8021-3a8f46b4d0be.json and https://artists.proofprofile.net/proofs/artist/1dfad83e-77c1-4f35-8021-3a8f46b4d0be.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 0xe4b140ddf75e405e72c44e5f3890df09492eef73d7590b773cce2ee38889e9e0. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/NLF710400151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd476f00e9cc93c3eb62cdb03aa92705053792089bebe666fac789fc405b7887d. 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/NLF710500260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d589a953fd25baa3a8e835bc24d3a270fb2aed14967ad6272151faff633185. 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/NLF710500244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244cc02d15b626d5c678453352960d2fb60ba5250f9700114d9a25d0b0958bdc. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/NLF710400129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641cafff8cb7d10b3be233f071270318b1f7b78260c9ab9d1ce32ce4f1b19f22. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/NLF710702139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05479cf532b9b22fd36988633075574a51fc8a6d2f31baf704cae993e0febc43. 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/NLF711002150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483952ecd9467d403db3617b28cff693b0e6d754bee9b1ae475d5821f8480594. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:42:12Z), 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/NLF711002012.
Liberate (feat. Kate Louise Smith) [Radio Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c804ec497b4baee60bca1d4ec9aa380ed47b0c0be4b922b4ca6f2f7543220c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/NLF711701778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a163f701fbe84e2ebb9429ba6c53177b95973a8afe6b78b779cb3076f3752af. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLM1S1700437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e378c460939c34b1dc900e6bc3fb4991b5f226efba23c003013f907d1f29f2. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/NLM1S1700438.
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
Coming On Strong (Gareth Emery & Ashley Wallbridge Remix)
Coming On Strong - ReOrder Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a8d4ab7a7566045576aac424f56995758f8e3a78bb3edf3bbba8296f0d45483. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/NLF712012896.
Beyond This Earth (Richard Durand Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2100f5f4e5376ee279a875aa2acaac978453365293ec846895c14b475b58e402. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/NL6YD2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7969c5694568060973403c940fcd763f885b1782a6c4f2ef7c423b6e2f551930. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/GBEWA2501631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09901fc210628cdfc1042e5f575e1948c91f14e1d2cb97643e81fa5c8b43686f. 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/UKRMQ2500449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3fcb2300c20afa772585fe8664b8b3e11dc512355a4d18007ca8ebd6ef48ab. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLF711311437.
ASOT 1179 - A State of Trance Episode 1179 [Including Live at ASOT 950 (Utrecht, The Netherlands) [Who's Afraid Of 138?!] (Highlights)]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb8d3bb74aea0f14be112477e49f319cbf93e9da70a910aa7546374ce5affb2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLF712406015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed8ce83c5838ccd206a9d82850b9e919444be3c91ea1391160b901cbdcfbe9a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLF710500346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a36f80d47a13d8e156f22f3e99d09f6f7b67250f3f2804916ec893f540e99ab. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLF710902870.
Big Sky [ASOT 627] - Signum vs RAM Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1b61f46c2a6031baa216a3771e79b6ec6dacd86c3864e4d19a0e8c81292a40. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/NLF711309381.
Coming On Strong (ASOT 850 - Part 2) - Gareth Emery & Ashley Wallbridge Remix
A State Of Trance Episode 850 (Part 2) [+ XXL Guest Mix: Gareth Emery & Ashley Wallbridge]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c009c12576525903714559c18ce74764191c11d2416d88f158d3b1ca0ccb4f6. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/NLF711801402.
Beautiful Together - Signum Remix (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf337d2e443b8a85497edbb770a62e4a7b68e748fa9bb08c58a384dad420d34e5. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBEWA2100043.
Beautiful Together - Signum Remix (Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cdc5f48f9366cec747cb09f758179f11c09dbcdd6ea685439da5149fccd3a4b. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/GBEWA2100050.