Devan may refer to: People Devan (actor) (born 1952), South Indian film actor and politician Devan (writer) (1913–1957), Tamil writer Devan Bailey (born 1989), English basketball player Devan Boykin
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 0x1fed0e3716f27b1afa0fbcb678fa9d3aa4be095b75e29c2546f279309545af1c. 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/0f2d512c-abaa-4c6b-a129-a87784f46811.json and https://artists.proofprofile.net/proofs/artist/0f2d512c-abaa-4c6b-a129-a87784f46811.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 0xf1e15250c8bdb3e3e432d55be95df7b325f99b4f8df0d28cc424bc33ab087fb8. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:17:31Z), 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/QM8DG2077281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe31b179cc07a62c11e8a5df559f0de508c00f6035e62ba33fe0c9569cee55b5b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USUYG1337975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07fe660575a7796c8f4fe9ba9fb6bd2779e85d54c7b8c216999f6bd13fd4667. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:43:05Z), 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/USUYG1345945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8362777e121fb1064b655d7208638376af545e364a13a1bd718f6dd0e956c87e. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:47:28Z), 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/USUYG1346488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9670db0240191445736f2ead507d8de71baa4679311bada79bd16a441d988c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USUYG1383675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93e8a8c4823fa5aae6564c8fe8e3e084e21b72437afbe7c2b19eb7f4d5319b6. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:59:53Z), 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/USUYG1383680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4597828fe0b2a8183d6a357f97f6847d13d32a33293e8d62562d4c9107cb25c4. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USUYG1376220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3a825e2e920c54042b04cccfc25d17c0d7f2c1072f0a58e81768eda5c2e626. 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/USUYG1370120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6691ef79c139cabd86e7a5eecf851192b017828f02261d531cf928e9574979. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:44:39Z), 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/USUYG1435698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaee7346f28cb13351714906747e4cbabd3ea1f52d0424c25e90b4bea294754b. 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/QM4TW2422105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471eeac42478fa6bb68333c288d0110d2a0404e72701f186b7a74013e232fe40. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QM4TW2422113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b40448c08899b6a57f74a3f7456df076715157d05c859a61a59b074ad5ce299. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:46:56Z), 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/QM4TW2422109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5610a2f4701ee76c2fb959c46b68ebeb59cb4ce4665ed3b74817f081224251d. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/QMFME2361768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaccf0c27e1d7c9e3c1bc4fc0428519b51316771ac35b06e0b3f8426ba6e1641e. 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/QM4TX2480789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce06b5231b20409bb627e191bb7459a4c1bab9609003a57479cd093c75170b7. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QM4TX2480808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82829a8ee26a94513c99e7bac19b237477224b574a35673d3af57d43a653178. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:42:43Z), 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/QM4TX2481033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e3a6f7169705d4b576f8a21aaefca03947ff7849017771d0f9899ab70a38d0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM6N22442715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae285d7c119996a1ed439fb91feeb46d3b360e8aed03c3ba624d711a7997cc9. 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/QMFMF2333735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93c31c118e578d162b6149e0bfd5821614c4f6324c2b920036211cf10e00449. 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/QM6N22442716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b6aa985677db0fc2b9007f32a9b784d53895ff6e5039ce050fbcdf810dcc60. 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/QM6N22442775.