The Advent is a British electronic music act. It was founded in 1993 by Cisco Ferreira and Colin McBean. Soon after leaving school, Ferreira began working as an engineer at Jack Trax Records, a job wh
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 0xbe2dfced151ac5a7561f8811d2a8aec04cb4c0b6a8ead872cd980c7c8bf27a0f. 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/7ae275b4-49a7-4742-99b3-e7e6a6165a6f.json and https://artists.proofprofile.net/proofs/artist/7ae275b4-49a7-4742-99b3-e7e6a6165a6f.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 0x48eeed03433ed78bfa21910dcbf61147aec722a926e4a4504200604cf58be0fb. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBAMY9700021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f844e8bca25244a0f957a22fcdfb8208912ee1b099e62c585289af4028cc864. 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/BEN580800497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9ddd11fc82ec7fd7c6b909daea1274c82e77713af69cb7119356a5ae2a9e77. 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/NLB9N1600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfea73e70877b6e33213125fb8bff8e2ca3d0c87236709d5f7c5d4e622edb735. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/DEMM41801339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8581946e97f6e6ac6f41a8aee8e3c5c8c42f6243f386b500ca7d5a1eaf63df. 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/UKRXP2000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68df58545e47c64528723aaf8564d0d16bed87d824d28119a308fa234bc1317. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEH742318912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d4d8fae4d9cd149c7bcbdaa5be91a66ca478ea938ebbd89507f083aec3da5a. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/NLCK42235199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97fc47b8a29505b4fda9b48012024e60b60c98deeb58131b4cb274070c11534c. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/NLCK42235200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe684a926d7b7e5f35d0d3789a0c2b932e161025c9d362f19c8cfc9f0555827ec. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/DEPU61811901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7933f47646d7c18ba2d1c176be177852cf835f7797fecef33996bbdabebb6c80. 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/DEPU61811902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x337ffe82698beb01e55dd24045f7aa57eb7558260ffad0988bcd87e1d456ff4b. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/USA2P2521062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a47224b41711798d86b7e30eea3c37448e7191bda0abea1d32417d3e0cb147a. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/NLL562503512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0eb096f4f030857ecd1b23a1fc8262cdb0ec42c3578199cc97695126f044e3c. 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/GX3WT2500072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e45f6c8cf3694fb4497bda1d1586ff1a60d0d853552fba6840148f35e7bd83c. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/GX3WT2500073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a7afb436f09783e2b224985cfb032fe2182788d402a0296a8be4bd77acdc047. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/GX3WT2500074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5c033ff918bc790973d7262edf7058ba6964ae5d5976dc974a27bd21703fe0. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/GX3WT2500075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809e2f21e70d468460070156e866609af3381c01521cfedaa5e960e20fd98473. 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/DEH742528372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174571d6b53515a47157fdcb6c1c501a2a554249c00e226bfb1faa46d6c2cb09. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/BEN581000231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199ec49d54b8a7fe6f63bf0a7fd4cecdfe1febeef9a41e56b47536f25ae21101. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEH742411331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe49407def2d9f5c8add96ff5ae5bc90f560a05df305083e07b0aeebdc4f85dcf. 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/NLCK41062164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f844e8bca25244a0f957a22fcdfb8208912ee1b099e62c585289af4028cc864. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BEN580800497.