David L. Snyder (born September 22, 1944) is an American film and television production designer. He has worked as an art director, producer, and assistant director on films including Blade Runner, Bi
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 0x9b99d5c31f73b7ed1d767b35c32367b7662d48bd13728cdfb96addbae12a14b3. 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/ea3cbf58-0c6b-4b9f-b389-8f6013547dde.json and https://artists.proofprofile.net/proofs/artist/ea3cbf58-0c6b-4b9f-b389-8f6013547dde.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 0xbf27021dbe9435130789f2a3605cba303ee4a2916fafef5e8d245ea0c5d093b5. 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/AUMEV2131136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e4e9fcf5974a98aeaf663004ecc96893933e92d672c2e99e4a9ebabd80dcc8. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/AUMEV2131139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6843d28949ad0f14c15176a80aa213686c32e5bd6c3ac0466458fc0aa0ec647. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/AUMEV2131141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae53a486b03129e22429efd482aa3104af5f4c574c27e4d94caa0aa444cb8745. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/AUMEV2131128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02748f6c112e92b12a426003ed7ba55add7bcde8a89611c5f646bf04b29de0d2. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/AUMEV2131133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf93433c33e646a6bd3a61a4442587a2ddad8174fa0b8120ecbf96aefb8e0b069. 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/QZNWS2034853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x358815c92b5421a848ebb82f855c1064962942aaa47321f7866decf0b3e194d8. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/AUMEV2156004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0dfb97dd6ecefff036daccf68fdf0b83bb426a96450bf888a46d7c2997dff0. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T07:21:40Z), 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/AUMEV2240147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d8e7f70ff8d1653b07429aff3ba60ecf0c8aa816616c7e4304fff850e30eff. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/AUMEV2349336.
Cloud Watching With You (Orchestrated Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x413e0c04a67cd351b79ce6d9529aa4f3a0b3675ea97bb159a7e42efb4c3598f2. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/AUMEV2463371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ddd2a9b25e5a9ac96615345114860a4d588caa748ce4273aae84c5bbada2b8e. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/AUGBT2494635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3060fa310c5002ef945d8cf2d6e9b75bbd75bb49c04acff5fcdde52917ddad36. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/AUGBT2494639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc0edbf5eab686cf86d52f50e796f8a962e762565fef185e7e535937a2889367. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/AUGBT2494643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8246e0340ef588bc14a166f75f11a8140ff7d03c1c2c5e6ecc3ac08b09071296. 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/AUGBT2494646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x432ab8a4a9bd4a96baa2b1b62f2c7809936e8817c31a6dc0995a65f98b56d347. 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/AUGBT2494652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5a89dd6ebd34345dc1237b14801e08bb7e62614b67db3e29d8c44aea9230d5. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/AUMEV2252161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x413e0c04a67cd351b79ce6d9529aa4f3a0b3675ea97bb159a7e42efb4c3598f2. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/AUMEV2463371.
What Hope Feels Like - Orchestrated Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf212aaaaba35eb347494ce73735cf9c5fa21159b7c19a13d3cd22ee0d48b32fa. 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/AUGBT2494659.
Test Drive (From How To Train Your Dragon Cover)