Slow Crush are a Belgian shoegaze band from Leuven. History Slow Crush was formed in 2017 in Leuven, Belgium, by vocalist/bassist Isa Holliday, guitarists Jelle Ronsmans and Jan Jouck, and drummer
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 0x51b56da743a2bb0a6267fc0279b70637cf53713bc58d5a60d8906cfe35899cd7. 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/0b91e1c1-17f4-44c4-aee5-c260f552b5a7.json and https://artists.proofprofile.net/proofs/artist/0b91e1c1-17f4-44c4-aee5-c260f552b5a7.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 0x0c06318154419067e372abff9c21018e9e8e13e851124472ee6ef5efc357e6c8. 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/GBMLT1501363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52c5573350dc7704d82cb52d6b4b9790b10c75d05ed7a6ea5b255e3a0e56b6cd. 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/GBMLT1501365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583f82b85226c96e826e724b99a2b1dd1614be52d66e028a532947f008342031. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/GBMLT1501366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85083afd9040f32d42ad786f5b91bfe4179f0af0e2023937fbe6b3e58ff0849a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBMLT1501544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda3318a5a14f4d3c85e8f01733526c30727bb94d85e78a6234fd68d03b9178be. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/GBMLT1501545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b097b0a49ff7ae27cd17a9eb27222411bfb8aaa91a8a419c3900a6cec0149ec. 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/GBMLT1501461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7c3d7d8aeafed4ac4018a65f5bcf60ffa1965be5a40c30b09b414451262247. 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/GBMLT1501462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a6c10534c869338acf1b42a8b2ead1815ed80a7ec261536122c6af322916e3c. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/GX34M2100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd5a695e889fba1e6c5f637434ee5e4ac3f6a4508a766ff08176fe88688a150. 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/GX34M2100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392e607eaf6d4f6f87022ad8b17dd0a3df9313b7aad3149c6a752702b3bec5d7. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/GX34M2100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd440e26ea5a665cf98e7ea494305f0c5bb97dfb1ce11881a2c7951e821ab7946. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/GX34M2100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1c5df3510b9770d766ad4615b401fe9e203662251c261dc2017f155d401f87. 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/GX34M2100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c99c611f440accd766afd0ec303e86411e2dc72cadd333aff465ef33a363e7f. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/GX34M2100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b27dc397c1035c4a79507c90bedcd379df01b203c58282a249e853aaee1562. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/GX34M2100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6973bd09349da48d3b580412ce1e1a4fd94dba5e5ccaeea63d3daad882b4aba6. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/GX34M2100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a6c10534c869338acf1b42a8b2ead1815ed80a7ec261536122c6af322916e3c. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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/GX34M2100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392e607eaf6d4f6f87022ad8b17dd0a3df9313b7aad3149c6a752702b3bec5d7. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/GX34M2100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd440e26ea5a665cf98e7ea494305f0c5bb97dfb1ce11881a2c7951e821ab7946. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/GX34M2100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1c5df3510b9770d766ad4615b401fe9e203662251c261dc2017f155d401f87. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/GX34M2100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c99c611f440accd766afd0ec303e86411e2dc72cadd333aff465ef33a363e7f. 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/GX34M2100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b27dc397c1035c4a79507c90bedcd379df01b203c58282a249e853aaee1562. 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/GX34M2100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6973bd09349da48d3b580412ce1e1a4fd94dba5e5ccaeea63d3daad882b4aba6. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/GX34M2100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f27c8c7ad05ed43426b2884790aed6948add6512abbabeeb05a15dd76c92e92. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/GX34M2100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b0bd330a6ad8254cf3bc7fdfda4c678cea5b23f4265fdd9e263b5e7854f063. 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/FR10S2287840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b0bd330a6ad8254cf3bc7fdfda4c678cea5b23f4265fdd9e263b5e7854f063. 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/FR10S2287840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4c5802e41f9f42959ad7cdeb35bf3f7b6c0e9f3f4ba00198a0d04b66903519. 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/GBMLT1501242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4567499f9bef0118f2708d4bf3ab3468939ca19225217c8c2ac10a292dfc88e. 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/GBMLT1501243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5161c363f148acd26c8d1468f8f74f02d6eba34a74aa5f0a27b9afa3e0b1e3. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/GBMLT1501244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x986220b09213f07cf6b473aa9003cc8b4517985290866b376bcdb3bb0342dd1b. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/GBMLT1501245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc7f83b088e4944945986540b12df69ae4b87eb2c90781276a5ea9c47836b774. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBMLT1501246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d19e62eec0407913c02a19d780f221f299aaeb7a0503327e4c4785d3a5a87c4. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/GBMLT1501247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e769838bcb4fe76142bf98517c1988f6ff18196fff8cc79e0c2a68185a727d0. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBMLT1501248.