Ede Ulfert Staal (2 August 1941 – 22 July 1986) was a Dutch singer-songwriter from the Northern province of Groningen who sang mainly in the Gronings dialect. Early life Ede Staal was born in 1941 in
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 0x9ad4054ebad87094e5982ca405c678636b6f37bff4e01c06a10ebe4bd931a86e. 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/02d11781-d148-4f36-a9e6-36acfb4d3cc2.json and https://artists.proofprofile.net/proofs/artist/02d11781-d148-4f36-a9e6-36acfb4d3cc2.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 0xe23445b5066cb1060b038dc8f404325a9742ec8874b0ae366657a0d48dc96d2f. 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/QZES52300818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15939a6de786d405c0ae40c3be80f594df9852f0953e3c66ac66205b94c6a17e. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZES52300820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd668efb629823cca92e389f9eab243610c943aa89d776fa851fb65ba98d759f8. 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/QZES52300823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee7e6a07b85e31583d96c2bb7b9f3ad0548cc163bc9e7c17994df1e1c342d1d. 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/QZES52300825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb496c9102e084aa3d9abf7ffeacbde1dbba04d1ffdb66dd43fee6e0ce409d1. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZES52300826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5382af17fb8fd1fa992602928e9f5c3e494937415713fb7df4b04b5d2cbf7835. 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/QZES52300827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2902a6f27cfbd24eae3e32097b75ed4e14660bec48712a414d37c53f7604179a. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), 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/QZES52309304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a0c13140993970c361e35aa37ba73e27b0415a12cfd3a55eee07a03a256b64. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/QZES52309305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb493a9cc20ec93c293a39841eff5f9ed2f59fa8d13da91b80759ec48a2b2bb3. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), 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/QZES52309307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21745767dfae2a9ce2171df4d55f2f4737829f17781d75f14373fd9d078a0447. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZES52309309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31cf63280d01ddc2a9148340055141d943a04c65e991613c9629ed9c701d24b. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZES52309310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a8ae1e9d0ac35338b21766ca62cdebb1a02b63df0c172883dba3a8dd017a9f. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/QZES52309311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167e86dace9839c594c346abd0fae0178135be1a069b4db515dae12684f3339e. 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/QZES52309313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb463062425182ef89acfd785e419995d4aa6375c3cef66e0095507aa7890bc46. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZES52309314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc845f0ca7de19dde1549feecd38adc703b31c1f181ba0ba7c7c247d9037449c5. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZES52309316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09fa710d78ab0f416d12f892ad5da86c1b06bc16cf549a2c83e5084b53da6f4a. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QZES52309317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521091648905a13c053484458418c8b44a4cb8353f67849d74be2ac36e2e7c0a. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/NLD231501007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3d432ecaaa318174fdb289a119d1d8eaa7b24c622c7703dd704ba9393b62b0. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/NLD231501004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de6f0eed9eedf4cec1c1b1940f207fac6fd46aa7d90d868572ec30eff38792e. 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/NLD231501002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00599d0bc76123c275878701c3215f9f32fc3ee0f92697e0e8c0440384355c67. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/NLD231501005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a012e3239c79f1e6a57cf24ed25a4bbe206e77333204d70b916f242585184a5. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/NLD231501008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd5e8711d851f89f37f57b4feb5179449bb29f46754bd6263928fd1c9dcc60a. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/NLD231501001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51000721d8e7b57d835d37762971d49225a24530cb6df6a22cc6d43a2afcee02. 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/NLD231501006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a70638513dd2af9ed0fe9ba88b481777442e7093d88d9bff02bb8a1683091a. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/NLD231501016.