Michael Nash or Mike Nash may refer to: Michael H. Nash (1946–2012), American labor historian and archivist Michael L. Nash (fl. 2000s–2020s), American entertainment industry executive Michael P.
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 0x1ee130a0476d7cf770981692259b9021e5433afc496deb1da361552870ccc101. 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/e1d027b2-6605-4771-b400-f303232960b3.json and https://artists.proofprofile.net/proofs/artist/e1d027b2-6605-4771-b400-f303232960b3.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 0xb641fb547c74a2aaca245ac12bad47a661598bb6e85db24f28edadbb57999d5c. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/GBPQM1100045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80eb29e187e83280f40c4d1be751b9f76a804d798f2182c109355a2b8b8e5fa0. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/GBPQM1100046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833b8e2a657249f456b4b10b95851ada455c3e3e1e87112cecdf9c66114170f9. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/GBPQM1100048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d21cfd32599cba9c32828df6abf2a8ef98bc141b9a4b9a3cc304d1e24b8518. 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/GBPQM1100049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2cb3d2b4321389bd93ce6a44038ddfa3795f1e6407e9ba8c8267bdb0fb7ce86. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/GBPQM1100050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a499363fd4cb7c0f93e6016baebcf67e853c2ef831ac3339a2bcadc9cddf80. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/GBPQM1100051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9465b2fc48831f3c347b65d7cea124552fa87e21df2c18b4e1ff7c7ca3340f42. 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/GBPQM1100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74a0623da8b9a62bdd8cabf6f42ad39856d723cc1b4a4db8dfef5e48c36f5dbe. 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/GBPQM1100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0011931d3d7e0432c5b94df21b90d592967635116f8e0a7283de1725d2ef72e4. Chain 2 (Bitcoin): anchored in block 957709 (2026-07-12T13:52:43Z), 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/GBPQM1100055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b82c7bba1d3bc58cf1b8c09ad5a00507e269eeb47048fbc6aab2e37dd99ae12. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/GBPQM1100056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48204828c13b54884ec20007dd196c6f986bb3e8aa20c0e5df38297ff2eee659. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/GBPQM1100057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1cda8361306432929f5eb6ab175f933118e7406b884ae501684e58fc3f8d45. 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/GBPQM1100058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6651f96e40a58373fc5f9645233fe764c89f3bb520290ca29e7f699fe72efeab. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/GBPQM1100059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bcb4bb17f01a7e2d6f8c2d6ff8673db8a0fe2d8b9897acc1e36e63b1c021703. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/GBPQM1100060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e9e5fa00f3c04c87dd2a156709a845c175231659cdbe6eb58127a85ee2f74c. 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/GBPQM1100061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f906f190de9f62d34ec7797a38acacd819fd348f2823a9f5c4494968e8c2362. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/GBPQM1100062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e5f78fba8175342d51b859b9a092f22328968fbb5100bffccf6eee76463c287. 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/GBPQM1100064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95460c2cfc524a7ab2a5efe9e513899461bb3d6f30d06aad06bd0b48dab08b23. 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/GBPQM1100065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc779ec8d9f3167f044f7c34968b2430c1b16ab1ff7dad22fc9ed358e173ecd. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/GBPQM1100066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b05cb58d4b970c06b284ff5ef12bf62cadcc19b24b591b0ef9c4aa9530af4a3. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/GBPQM1100067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb16b352fac0ea2471a1163fd6f8387bbec90427f2000300f053e69701b377703. 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/GBPQM1100068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd62ae9be68a189e7e02cca4244e7502fb9ab3ed9ca0ce9486d6e57175efab34. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/GBPQM1100073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad9a215702cba49b1fab9730d36af2b1e3993bc0d4a0f0ca7eeec610cec89b3. 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/GBPQM1400451.