The Blue Van is a blues rock band from Denmark consisting of Steffen Westmark (vocals and guitar), Søren Christensen (keyboard, vocals and guitar), Allan Villadsen (bass), and Per Jørgensen (drums and
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 0xe771898882e71b3033a107d1d5a0c9cdf98b335a9a60609b02a5522a11548e93. 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/b659a0fe-6431-405b-88b5-d44c31b2740f.json and https://artists.proofprofile.net/proofs/artist/b659a0fe-6431-405b-88b5-d44c31b2740f.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 0xf6b1dca14234df3262a72a7c45b88a151811b2704e089c5a4dcf442d63092c49. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USTV10600265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a77ecb094268a33f3ef3f3c33ba2d2a0add57f3dd276278bc01a481161e4cba. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DKELA0800701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0cc043713ebc5d0b2f80c2e5e4f2195c472ebf07c3e38f78158b529960d9ae8. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/DKELA0800704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a654048f803f8795b9bc40d7c62372be6b2adfbcd4a45255e8c1a3835f760b. 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/DKELA0800705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aadd867b0cb004425f09da80522eedcf9b3c1b984c6416c89e32b5e86549ce7. 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/DKELA0800706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa318722128fc9695d0b50479a8d535f901deb55d3e81f07c246fb47513767b0. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T18:26:45Z), 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/DKELA0800708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d93357b1bc99af5c24adabfdb4a6696455aeaf3b3829d4abaaca16e4e7853a3. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DKELA0800712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e53d3a6156c39da68c8e2128e40b78021413001dadd0b56e3ec21f4e4c1d188. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:22:10Z), 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/DKELA1000802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb00a721befccc31b12000d10467c384f5c6ce2c6fcec28f068212f0daa305b0f. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/DKELA1000805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a71fbea19e53ac16efc434b38c17d498689f5f80390b55e25ee58e92754cb7. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:45:52Z), 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/DKELA1000808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16062bfc714260d43abe31c52f4915e66dca73a0bf15fec1ea6aab1eccceb7e0. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/DKELA1502010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe4c4a1d6b47353a8230a5bc71309deac84ebe479c6117821dd972f9e379b5d. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DKELA1400801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00f3c37f9c14f7439aab98deac77b21c5da58d2dae6f40f457e931a5f9016ed6. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/DKELA1500201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc766be1d59469ab49900d0d0b3b1467d46c4aab5139b6b27dceaa3d10b32766b. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/DKELA2300401.