Boris Kor Tom Zeebroek (born in 1985) is a Belgian musician, known by the stage name Bolis Pupul. He is best known for his collaborative work with Charlotte Adigéry, and particularly for their debut a
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 0xf33f7af0aa5c6337572e1541f89eef28e64f7157bd03afdca55385769479202e. 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/00e66acc-e198-4b32-b070-639cbe53a8d6.json and https://artists.proofprofile.net/proofs/artist/00e66acc-e198-4b32-b070-639cbe53a8d6.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 0x1404983a8238b6c53c2a19e5dcff857e763303747b1ee928c18ed438db939c70. 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/GBKPL1665187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa161f9a77d8b096969238a74ba2198cddbeea80c8315a594006543230856a1. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GBKPL1665188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f36f740f9826f0830cae66bb78779b47bad3c63559e7d89109c1ea28142d1a. 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/GBKPL1775871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6977dbbaa007c8d9bbd3d610c28c8dc61a0dd60847f84580c1bcd8447a74a5bf. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/UKS362100125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07437613d629877c2bd7d402ebd00ee3c146c7b540c23ba33b1f72dc3dfbcd60. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/UKS362100126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa2be74f86f6ca4148da9324d74d7c9ee75ea89bd9d3ce9cf4338323252669f. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/UKS362300199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e027e541272c3f04f090d5999ad84c7acea8acd21965016a998164f598210cd. 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/UKS362300204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5afa389841a33427fd717040baf025b2390069aaa36b6f237ad7a44dcffc8381. Chain 2 (Bitcoin): anchored in block 957591 (2026-07-11T17:21:30Z), 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/UKS362300200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc1bd4df768bc93d349c342ff794237b72f4c0ceb6b74dacf92009ca3a6419af. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/UKS362300202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cafe6dea22537ed6aa4d346087c9e2f49b74427b42598682d5b85983df996ec. 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/UKS362300203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93debb4c2158d55f7fd21c3fec77944d58abf5ea6b3d51549e88df6f9bed6ca2. 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/UKS362300205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd53b1b11614667c0fcb3217143be804db4ca735245d9b0d0adbf1957eb0165. 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/UKS362300206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17fa98396abd8c121a6c6a2c8541e232d41d784fac785d4e78770eb918869b3. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/UKS362300208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4037d72d75a590a55b23932ebd9afa28f9bfeb7eb64013425e10e44130f43fa0. 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/UKS362100083.
Hold me tonight - Metronomy x Bolis Pupul
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6e5f1c396496e10a0e64673a4310368476f27725c54dae653932c2bf4705e9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBMVH2200860.
Let Go - Bolis Pupul Moves Your Body Remix
Let Go (Bolis Pupul Moves Your Body Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15fe9bf75aaa77dc7220d8e5fa690db84570eac6b51ad4e5f94ce4b4ce1e2334. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/GBGH72100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdff0e04fb8e876726402016f0f23566693dd9d5dd43e2714b4ea4e07d48ff1d. 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/UKS362200167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a97943418974dc6c6bb3f4acc253ea3bc46f61651423157dcfa750d9b68ac66. 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/UKS362100080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27e8979063fd9553c5baad0bf55c06fa0f53722730a6cf0c169371c5344b1ca. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/UKS362100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd399434f9c278d7a82f95fa1581abb48bef2e2b2fdba938eafd4e0851dcca1ef. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/UKS362100014.