Wahlströms was a dansband from Vadstena, Sweden, established in 1985. In 1999, the band participated in the "Dansbandslåten" contest with the song "Blå blå ögon". On 27 September 2011, it was announ
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 0x9ad02ab7fda1cfdd65546ed728b1f458116b7b3385cea440c50152f6bf70cdd4. 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/89537476-4782-469c-8e00-133d5af4ba8d.json and https://artists.proofprofile.net/proofs/artist/89537476-4782-469c-8e00-133d5af4ba8d.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 0xfead2d8b80f881f7a48c8d284cc59fb1f08ce5c4d7bdacaace73d2cab23fe5d5. 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/SEAOF0500066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4884c2f345a527d59f0398fc5bb58a996ea996e77418d86c03aebaf7d690d9. 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/SEAMA0600684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x333a7e74fadfd5b2384be15196c8ccdc4fcc2cc0af47f5e0240f2445f9e685c7. 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/SEAMA0600689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7905de09d0de606071e92aced50f298b3c39c000d301e290681cf1e90b18777a. 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/SEAOF0105010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67bee5622bf7906055ed13ee7fa181f1033a645214fef589fd6bc00cb45bdb9b. 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/SEAOF0105050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dafcfa8b6d8bac8117a375fc13279af1f6e8b7903010bea3c859e5e11c0b118. 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/SEAOF0105070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d12f721eceddbc196b727ef8c3bfb65f4865e6a5c24be56ed1e2ba1b554f7e5. 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/SEAOF0105090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c522803ef84f90ade10f9b5e17818a05496ca9d157466997ddbb6db96b4bb6. 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/SEAOF0500102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7de59de44b12508a18a7c8807e177988afcb5d246fdaf7ace8759b93593ff2. 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/SEAOF0500101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e2efcf55e0106bd5b8f32f98aa24a02bfc76123173ae76a23d8104e579a57db. 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/SEAOF0500106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f3f5a155feaffb4bd5516523646c7b41d17c552ede9a1fb21457410fbe06e73. 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/SEAOF0500107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801bf8babdd5fa842d504ddbcc726413fbec14cc8404680e066b9c7d9728c2e8. 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/SEAOF0500111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b94c3207ed8388c08cec994d8a2d16bc6da7b26ddced9bc6c2e4dd4b8cad74. 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/SEAOF0500116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32bbdbb6cb151840650522c0a2569ddc751f956e74df4a4aa1fd67ead05a969c. 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/SEAOF0302020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d09f9ddfe4158dda6c6598ef62ffa6447c83eff7aedac1550279ec6948b1419. 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/SEAOF0302120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5c5389331ade9f7a46cdef9c9acf503a81edf3f64295996720be2aa5c2d1b1. 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/SEAMA0600680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c79569804c41bc803567719b9e93fbf9e93e3ce9072d14feadc9a8a11cca9ff. 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/SEAMA0800405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35d681e112961d102c674a3baadebcbdf62e0eef663de117313f8a1b4d52e02. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/SEPEL1001701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8013a5d0cc122470a5b0bad9ef75c67e52168a7ff4756c398fb477abfc3ff4f. 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/SEPEL1001702.
När kärleken föds (It Must Have Been Love)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b679a2aab21606d201d53a7210db6f4ea955dd44f507c90a7508f1eac2ce15b. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/SEPEL1001704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac61291d130bf8f4848c79d988ea1a52e0bf7b42c06a8c6120be608e8491e75. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:05:59Z), 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/SEPEL1001706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55a10e4d19325320ead0bece5ed5cb310f6a9868988194ad5b6b1cc861998aa. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/SEPEL1001708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35e03ffbb18a03b4c46bd4106b3d54080d301bf744efb2dc0f46905655fd247. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:02:27Z), 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/SEPEL1001713.
Hur kan det regna från en himmel som är blå
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c6b512b9c7abd64b32f712af065a31d1c97f3d6c6fe87cf0e455c0464c083c. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/SEVSZ1704302.