Grad Damen is the name of: Grad Damen (footballer, born 1956), Dutch footballer also known as 'Gerrie' Grad Damen (footballer, born 1997), Dutch footballer, his grandson Grad Damen (singer), Dutch si
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x862b4a03f0e45542714a20382c58c6841a9cd6da369c8ab217bbaea00ab4a7bd. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/26489f7c-c50d-4e96-8c6f-bd68b5fbcb8c.json and https://artists.proofprofile.net/proofs/artist/26489f7c-c50d-4e96-8c6f-bd68b5fbcb8c.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 → block OTSBitcoinBlock must exist at that height 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 0xdc215903a3c5794f4d110bf0d335ffc94568b022248d70ae214951008982bf50. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:41:53Z), 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/NLE870872108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d83da9a21594afdad547b87f58f35e57bb2cfa9cb9c2a8e6f6f6ed4a6e17177. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/NLE870872114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd8f3558a4cdc59f8309476b5a9c151755799ed80dc2aa2216b7f5244e0c890d. 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/NLE870872118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c53c5419cd184a5bff88567aefa720babe4eece5e09ee38a11d0004ee460480. 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/NLE870872101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb81bb0777f8d917eb98d3c0e381414cf2b1aa15ffaaa11d141fe149cf9a4c6. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/NLE870872103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297e03dd346aa88bf2d97a11bb6b950a2c1d88242858b73dfb89891312f9b318. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/NLE870872120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bfd699a7640809f9c30498e0ca97de7b5bcbc5b4c91ade11e8e1480259b679a. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/NLE870872121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af99338181c61083b3769f1c0fbeca2383878fd83e4ae1be2ad78a106537fc3. 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/NLE870872130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf4ff8eaa2d0ecd093d6416ca245e7cf3220d6311a2fbd8976e0cd912ce5035. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/NLBP40700117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2c537d309ad09690ec270c8e0f3cde39e23bca89a8469f9780ed5530f1cb45. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:33:49Z), 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/NLE871082401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44718176a72f99167fd35306d85aceebf0e985af597d0979ef946161bb72e940. 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/NLE870872104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3955965c9e2d89ce1fbc1835ccac3d5dff0b09ae72a76c6ab8428a64853245. 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/NLE870872126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6111dfdc25440334e154aa4905e11010b78c7417c99d09833a21caf3667b808. 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/NLE871082407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x138bd83b5ebd98f281a85cd892aa233ddcd49c0c603e790cca386b8d63bfcfb8. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/NLE871082408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0aa7c79b8aaeda2aac692feb953c613981b46732dde806146c92f8ba841bd9e. 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/NLE871082410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda65fb2b99f6a4ab3c5a547dae50decdd472d1a001792a2cfdc07282488d671. 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/NLA241008028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ada19596b29ad580df9c933c97c0e04cde037c5cebf2b391d53463dab6cd50d. 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/NLE871253501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86bc9de0529d15a4760d7bf160e52329ceb29d760122db86e477e831032de196. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/NLE871326201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775907847fdff75cc3808cf8ed08e790ed5c84a7409569bad57a577deb1b0b9b. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:24:47Z), 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/NLE871313907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e39fec07ea6dc5a8c0f411455303f5c687e3d6948554535df9d07b6f8af9e0f. 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/NLZ291600168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb623ed74fff9137e4b11c6cf8d3ce62bbdde6e43695651738015ad51a38d8a. 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/NLP421700024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42c9143d2c29c39f26c22972293fee88f74ec73b287f14e2e2838a3c298db25. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/NLA6A2000180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb881e437b9d15fd066da330ed03e9463348bc89727021c54d4ac8ed4cb66f1b. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/NLN8T2323003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b41d104e97e7eb32abe52fd75d216ee056d831dfc7c42b232afe856240f950. 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/NLE870891111.