Vigiland was a Swedish house duo consisting of Claes Remmered Persson and Otto Pettersson from the Swedish community Västervik, Sweden. Their first single "Bouncer" became popular on Spotify when it w
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ea8e2c1c4beb16eac797f917152705026f8ea888ddbed19e210b723571dbfa. 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/a779baba-2f45-411c-867e-05c46d93cec7.json and https://artists.proofprofile.net/proofs/artist/a779baba-2f45-411c-867e-05c46d93cec7.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2e661665f22a5e455c258f03150e3cb90cbbcb8a33405e915da32b0ae68849. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USUS12000475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72f11c92864d6f4db22d875948c8fe95c4362d13cdd46464e3a6083fafeaad1. 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/QZHN32068715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ff5bf9bda44263fcb75ab4a71d97b41fae90dc8b960513a26263887220efca. 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/USA2P2024649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d622ba9aa3f57d576801d51d345c515f80658ad1a1d0b4c6b9e5d550059f4a. 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/QMFME2250697.
Waiting for Life - Arem Ozguc & Arman Aydin Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c9d5f72b3cbd41728869e67208ed0887bcace38afc44692e8765090fd350ce. 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/QM6N22217539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657c4a5380c73e04405977f62824c3e7e0f2b0eefb86d22ffc0d4237c2f10f3f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZHNB2280581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb05cded2d73a96d8c6f8d5856871925529173acc73db5c6ea3a5a05d3b44915. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM4TX2215061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f86c81283e8b65c310ff9d3059836e674cb367d3e110aca58c2080e789cf610. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZDA42210305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb847ec9e46c5c5fa3b3f7a3c17fccb9cdb16a78b6276d8e38f8be8ecdf8aef88. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZHN72055377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172411e3cf156d4d49f76e2f1058fe405d2bc3c2ed15697b087086e4f259b51e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SEUM72000193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a08e85601b18ca8ac44367a484d62debfd3ad50db1a0bc47461df3ca17e454. 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/SE6BR1800205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc169022268c47dd0a79bbe6d4847ff932a2a17b673a2bbb943910383b22324. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SE6BR1800204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe00d0a792e4f36595c5830041e0c407971c1fbc4e858098c3184c92b19b1a47a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SEUM71901024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a51807492e68be5cbb5273e80b5e24cd5a129696fa6f10b44c8ce99d6b7ae57. 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/DEUM71903069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9711c501ec61c65bb5e03f0d0e8520b638989bde479e860a19a552ac28e07c. 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/SE6BR1800203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba490ce785587e07320bb110a56a8dd6c46eb3c446f7e915bab3e3e1c4bffa0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/SEUM71900204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa978dd3c1f749b388dca1f1e27474a29e367f1fa579136de4c181f6b2d28391. 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/SEUM71800793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7621347cb51743b8e8af6ee20714586dafbadce0f566beb367ecc1d865f22e9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/SE6BR1800101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7001504393b486c0fd52cec7ec23ac9a68ca42b2dd00141b1fe966bafb6b68. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLZ8V1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03d99791054d9c0098ac7c63722e7d9f516da4f70c1d68e4ba0eec712e5f3a2. 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/SEUM71800245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c8e9ab4089d36d7e5752a92372e637c91aa5fc25e2712f5b2f473ed43c1b4e. 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/SEUM71800271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c247f15f85c6a3d34a8e7e2df73719dcdc5041c4d9685cbb2058cad1ea38d4c. 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/SEUM71800272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabeb919f70873e5096c8ca2236ebe725b18d8b207918cb25952142dc30f89164. 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/SEUM71700734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65bcbc3ad225a5a2e4d1041643b83da45bec7d9eb68cc867f92bcca7644298a0. 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/SEUM71700663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d20e331e841c2a49881a22f0af0a88af19dcdc889020adc422913ab631712cc. 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/SEUM71700309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb229c9ba8101c364175292c88d9970a6ab117d38d5061f6ab28bfeaff1e26b. 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/SEUM71700128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd6b36ee470b7a93f75f3d1a0a39f23e9831c2b992202a4a8ac9bb022ea4faf0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/SEUM71601277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7001504393b486c0fd52cec7ec23ac9a68ca42b2dd00141b1fe966bafb6b68. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLZ8V1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb9552e19a08703ca3856361df048464e287e20839f17415bbe0265777751d6. 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/NOAJR1700004.