Wouter Hamel (born 1977) is a Dutch pop singer. He released his debut album Hamel in March 2007. Hamel's style has been compared to Jamie Cullum's.Review of Hamel on Revu.nl (in Dutch), accessed on S
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 0xb884f7fa02fb181bd62e6b97af522d7fbc651f09975bc36546af07cd3b7e4d37. 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/4c6134a2-49e4-4471-a38c-6b4b84210312.json and https://artists.proofprofile.net/proofs/artist/4c6134a2-49e4-4471-a38c-6b4b84210312.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 0x5f60ccbe3198a683aa851bfdaaa26b2dc05f7de02ae7462db8086c1f9cee56d9. 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/NLH210700105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6639cc5f51c2cff355c1c13508a64b7fb3bf580483cd6e072db2903d83c1f5. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/NLH210700106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239db71287c9d94196a0c3d79c3107f4396fd78599fd3d4d464185abdde28f3c. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/NLH210700107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d5caf0f33d8c7e0456385f0d2b226ad4f3c08a0683c79d6523ef81d48c7f39. 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/NLH210700108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02821f37f1ba084b97a0d26be8e28f781fb06106258ab5048d567ec0656aa9f9. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/NLH210700112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec2d92261974959d3f47bc9bdcac3a851c98b1a2601fe15ed704d1df1de4af7c. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/NLH210700114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa21300f628f247008eb54a2b36df665169a40cd94c055fc304fae15cea8727d. 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/NLH210700210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d163117444f251a09b244826508e67a300f16283c29753b927eb11e2ce8b00. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/NLH210700213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6b0d0b1ff5fd2a35b94d90ef02018ca5034112cf89e7e9a2de065277aff040. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/NLH210800333.
One More Time on the Merry-Go-Round (Live at Paradiso)
One More Time On The Merry-Go-Round (live at Paradiso)
Une Belle Histoire (Muziek Van Linda's Zomerweek)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0958eff0d26226c61bc3a0bd89b3c92b5059e9e9ba741ac9c0281c13f08dfc97. 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/NLA8D1500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0bf52ee1142dbfbbd9e211d8145079e395ed04ae0ecc3aa2cb4c4c869b4e02. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/NLA8D1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb4e24f4be58496f41bb31f56764517970c104025044518a8ba89f6459f0488. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/NLA8D1900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb4e24f4be58496f41bb31f56764517970c104025044518a8ba89f6459f0488. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NLA8D1900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c73c10726a7c83f900e2ca6bdf28ee658d7fe33258cdaaa990e052a74c88bac. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLA8D2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c73c10726a7c83f900e2ca6bdf28ee658d7fe33258cdaaa990e052a74c88bac. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/NLA8D2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc2e86c8858acafe210fb1cb0618598fb00e9f93728c20f37a7a7163c943969. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/NLA8D2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93166c328c5a186c7af31809120010f5ff4d525f77e03f826c3310b4d66e06cf. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/NLH211501052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98018147d71801e8ce314df2737d67c4cbd856b0153c742e6915ab0a3debfe0a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/NLS241201755.