Volumia! was a band from Heerlen, Netherlands. They started as a cover band and later developed an original repertoire of Dutch songs. The band existed from 1993 until 2002. They reached the Dutch Top
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 0xbc908757662676e3b54d9c59b757b445e641424962e364e74606ad6ac9c5eff8. 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/6c1fcb04-a3a2-469b-a0ad-cc05a9853e4f.json and https://artists.proofprofile.net/proofs/artist/6c1fcb04-a3a2-469b-a0ad-cc05a9853e4f.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 0x04a793ba5d1c7f72e8e15fbe9ebc29739715a36cbaad43c28e18d7d3a60fa1f7. 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/NL0010300370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7102d311b2ffa838bf4d2bd09c1596eefd2c75e1959e459ad46ff46d7fc243. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NLA209800026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87457872041b76cdd88a48240e898832d32f68250b4833096c81e7654ae5f00. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/NLA209800029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58e04bcb24bcb1b690e78cfbdc47d8a23badf0207cbdd9e349576704f298185. 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/NLA209800031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed5a497189e1c97e2e2af25879de14e00d3468f6a4eafaf3f38b5d4347dddc7c. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/NLA209900086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x660632801661cffe59d8795346437c08c3d7cc4c8644f89b5b4513d75862ffc9. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T08:04:39Z), 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/NLA209900088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f305240807c86232f08779fe3214c0d38d2741f5f30c1ec35517119f3f73e4f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NLA209900093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f5dfb27e1113416cc89f54a57f3c60420f5672c4060a900441b916f687d270e. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/NLA209800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2c9b0c6cf3350a4726eee02e74666dfdbb651bda678d310b040de85e7e71c0. 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/NLA209900069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca32e68ad77428397dc664e1163cffe89361336686d3c347941d31f9368c00f. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:36:13Z), 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/NLA209900085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x660632801661cffe59d8795346437c08c3d7cc4c8644f89b5b4513d75862ffc9. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/NLA209900088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91452a79b185d08a4c30e9ec236e707c83ae48b9e44d98d6a6a4cb30d1d1016e. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/NLA209700117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34aa0d26df8cbd6c16fe88d15f2d6665417bea151d8a070662d6c044e82f2853. 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/NLA209800024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8870f4c366b08638a208efde0d785c3a3b39112bd9a01ac38dccda9057be73ff. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/NLA200100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8833a6475a1b850181bf633be87be20810ea2c6ec2b1e28b4073924731c93d19. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/NLA209900089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a427fada9261c59ee90abe43600aaacf82b2f2bd138656760c00ae5d3ff30a. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/NLA200100042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c7cb9e68e5b126fb0493935686d131c673b2858ad33abd5381dc5a0b64a67d. 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/NLA200100037.