Strayer is a surname. Notable people with the surname include: Barry Strayer (born 1932), Canadian judge Frank R. Strayer (1891–1964), actor, film writer, director, and producer Janet Strayer, Ger
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 0xc08dc2afe317b11df30f6a9a3deb13d9ba67b03bfe745b3c6d985155b01b5ab4. 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/096f3fa1-e81e-448b-ab72-24477a2dbf7e.json and https://artists.proofprofile.net/proofs/artist/096f3fa1-e81e-448b-ab72-24477a2dbf7e.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 0x79b171fb33a7c7db65c84e890e43fcaae8d1df56d5d048d418f321995e6d6179. 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/QZHN42541837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12da099f07a3373f1f237a9c5d34ab76612350c7935efd9593c66fd13b9c71c0. 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/QZHN42541840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f0ad4eb2b95fc7bf52d2ff873f37029d73d6532ed3e08f955161e8b853cae7. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZHN42539743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4cea1d5716fce24e776242fbf385bd8f0f3ec0dcb4d641690d3560c8a974be4. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/QZHN42541846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ee551a6cd53f949e548d8cc908416c139758dfea53d7514fc99b8b1e22294a. 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/QZHN32562142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5aeb8212829d0799b589fe7a2a0391c9998f36e77ade5a58cdccd1743534d39. 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/QZHN52576960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f28497aa549a31f8127132fa58d6b1f260faa3a97ac68c11e40d01e7cadb28b. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZHN52578269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c97fb9eeb680252819de87b4bd3f1bd5f7e0d827a87a78a53983c8a7057e727. 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/QZHN52578254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd3d195928846d68ad2c7548b0f3509627ec469b17528ea3b342177142c38cf. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/QZHN72555805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93803e0b4721eb33985c13982ce2a3cac55eb71665c755ba6ff1fc8f40edd4b4. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/QZHN72555804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02fe4525c0357672541f76e21ec2919ede8a5b23770eb5b8b129f6f956a58089. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/QZHN72555806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb2adc310fbcabf58f0c0a6f9049ac94d76ad265cd589b32bd70fca962bdd57. 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/QZHN72554406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b4565eaa8f46091d701c518c3292476d293a043ef24227d84c328e9465ce51. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZHN92507912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17bf92a7983597fd7abb767cf00c28895969a842ebdd21b96bec0b09ee1f0054. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZHN92522372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb121ddddae467b51a97e4f7c5e1ae42e717c2f21447c7f188b26ac9abc58431. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/QZHN92507975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2049ebbc77014684f48dcc847442e3d154e2a00675614a8be70dac47a4a0c568. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/QZHNB2574665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f602641de646df4598ff12051e8aea251630ca7e414be0a1e4dc0a2353bf68. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QZHNB2574663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3fdd96540ce04bf8e0e54c6e3be54e7afd30e3a22b1a2d03236c4bc8b84b0c4. 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/QZHNB2586916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x611c4fc74575b5cee828f7021ccdeb42b3d48b8909e4352b8753a0008b704261. 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/QZHNB2573262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x334e10283f61e9d8014e62b35b2a454b6110aaa9a35f0fb0f61825c7abb85214. 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/QZHNB2573252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a19b53fd8db8c2752071b97f23a436b9857ee82c2c4d03e8f7289a2b2d3781. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QZK6P2592450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ae48aa97e78aa5c57016ffef5205cea6406043308fbe1078c522899478de34. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QZK6P2592436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eaa517212937788f2ace277e917a0c8c2309b795c2d691b1b088f54fa824417. 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/QZK6P2592451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e77ee6007bed4b5ed61ffb0482a13545fae3c0739b59e46b455865fda1444f. 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/QZK6P2591036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0610e3502d390b92cdc44d05bb08016b9ac80a87bc8045563c0e5e9bd2162e5. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZK6P2594684.