John Lundvik (; born 27 January 1983) is a Swedish singer and former sprinter. He was part of the athletic team for IFK Växjö. Lundvik also has a singing and songwriter career having composed songs fo
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 0x1994b56092053ef13b99d9ab24e864b186be6a7229c96dd3530ba58a391a5038. 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/40a6bc79-0914-4270-bb79-383b1f658dbc.json and https://artists.proofprofile.net/proofs/artist/40a6bc79-0914-4270-bb79-383b1f658dbc.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 0xcb06e897429361587201c8ddb1595724ab1645eb65ae4893d6de9e57c181e9f8. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/SEYQH1501801.
ALL ABOUT THE GAMES (All about the games)
All About The Games (Official Swedish Song For Rio 2016)
All About The Games - Official Swedish Song For Rio 2016
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30caa43cf524dd7eb1b49998662b5858af4325983ab32571e0a4e71503544f17. 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/SEYOK1639097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7023b53aa6491b68e210cc767573913b8076f583594a7253ab13e8913c5b9cf. 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/SEPQA1700219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60fa16207f2a71de7ec60379372b241a79a97f13b85fe503f6aac65fbc11f564. 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/SEPQA1700272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcabe864afc75552a9180f4610c579b01bb1498f62590e29ddc3d40c039b9312d. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/SEPQA1900054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x888de936010a053c1f271b5f909694807724dacce82d358c8def5445ff94e208. 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/SEPQA2100113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfdf4caa5a56b3f350f6a0749b93abd8e2fc61977b7e6535ce7060829f44c6de. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/SEPQA2100114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f395d16d139dfcede436725a1a5aef5ceb9161cd20bd76588cc52775c16897e. 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/SEPQA2200068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1f41b77d692d2f3cd29da92c028422fb0fd0e9cb9c30bc2c2fcc196f6e3664. 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/SEPQA2200053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf40771567957b7f529cb3d5bb053ff7bcffff9ed9ea41175fe855bfbaa8203f1. 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/SEPQA1900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb310677715759cf4074005f8cda3b8f14424d8ab443e0f98be8cbc7ed1edc46b. 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/SEWDL6141688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95cd8e0bd36dcd6ad1ef903c709cc7dd413b72c85778a284cf5a5aa17d76cae6. 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/SEPQA1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf40771567957b7f529cb3d5bb053ff7bcffff9ed9ea41175fe855bfbaa8203f1. 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/SEPQA1900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1f41b77d692d2f3cd29da92c028422fb0fd0e9cb9c30bc2c2fcc196f6e3664. 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/SEPQA2200053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de4fc67df542e9c14a5c4c1bbf9e6dfb0a881f4538d459e301bd222f88220e8. 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/SEPQA2400194.