thumb|Kapten Röd live Björn Nilsson, (born 7 July 1983) better known by his stage name Kapten Röd, is a Swedish dancehall/ragga artist and music producer from Gothenburg, Sweden.ST.NU: Succékaptenen
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 0xec9612a298d3d20c3d8a94a5e450a12c5db96111f789f9cc436fc6722c7d3f8a. 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/46f8be09-4f28-4610-b109-d1e4af764b5e.json and https://artists.proofprofile.net/proofs/artist/46f8be09-4f28-4610-b109-d1e4af764b5e.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 0x6bfe34ac6cb35940ecc15c9453e23dc484ddaf7b88d959c005e193a02866922a. 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/SE5OM1801201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6692bc5f0d876b310eded1c6cb94401eaddf34a8e188f114c6af7028cf6154. 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/SE5OM1801202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9227108d05c36d8902d7ee0fc3e36530af6c7d1ea898ce818d4535c8f99afc3. 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/SE5OM1801203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46cb4bb4104f8e495cc0f845f192cf1947051e055c94f065750898cae2d9c7a0. 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/SE5OM1801204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f62c44fd63ec0bfa25494bb3cab2b6695f48dfd32ba3a112597f88865790f54. 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/SE5OM1801205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6156955bde87647097af5a18e4ed7713db811d668c1a0e88bbd52701a00808. 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/SE5OM1801206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b3ad9703890c12d294deeafb29b92d7c7dec0daa7c81fe1a12309a8c9c9714. 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/SE5OM1801207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c107d7885157ef77496f5cc0ec5bc8ce1b3083e4fb97b0da65e0a8fbf26fcc. 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/SE5OM1801208.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d62e22afa436dd783bddc8b9b5e6bccdfc3046e3e776475fd2c7aea111fdbea. 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/SE5OM1801209.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb2902458888a5bd4a534360d51d2c4190818224ed95de236102ce96b781dcd. 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/SE5OM1801210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47edc37420811ad9666dc54640b5922d73c4c94841f88f87159be90446c6676f. 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/SE5OM1801211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f382c232eee6a657d629ed75e55cb8b5daa640ec4acd482e3a5b9137a718605. 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/SE54O2200703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64ed9ff22e04001e44cf644319f9c68e7b57a247ff1711bffe38a3c6571920f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEVQU0700301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea35c112856d6f253cd234d9f8b03c7859eed0dc80336856ef327c41450a2889. 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/SEVQU0700302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd4dd0aa7f03a7c362548f98ea8ca321d1ed945807cacf169662d0649895697. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEVQU0700303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f64163bb5f0df0a27d5999cce7d0c0701f4acbf118e3142519cf4cdd01c153. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEVQU0700304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211ae0b1edb8f5aee25c29fddef7c0d414c604ae8051ab64c0f2d504ce1dfd7a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEVQU0700305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa307875ff46c456dad6112bdfeb44793d1dea01a9d4cbd0cc9ffde887b60442d. 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/SEVQU0700306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x215bbdfe4231e177d0847e89fb9b7fc13cfeabf3bc500a837ac4872b1ce4ec8f. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/SEVQU0700307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da52a9e512ef24b2391f8da5131d07f30a23f215baa5e917695b1ed22c9c657. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEVQU0700308.