In optics, the Fraunhofer diffraction equation is used to model the diffraction of waves when plane waves are incident on a diffracting object, and the diffraction pattern is viewed at a sufficiently
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 0x6a8acc25890f32a7558ebceb2a12483702be86e6d3f73861c0d4673a384b198f. 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/ec7ec9aa-cab9-4c25-8e4d-75dfbf867850.json and https://artists.proofprofile.net/proofs/artist/ec7ec9aa-cab9-4c25-8e4d-75dfbf867850.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 0x6213f177de1ddddb7bbab55b84ef3870076322c9464429d53e4dd5779f474345. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QM4DW1584203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5cdf15e4529d0e9fa124fe3ac16ea2acd6f9f3b13b3711be1c7441c82177216. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QM4DW1584230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f07c8f8f77adce83a0c426aec39d074f47ddfca84957751e65711f1fb4f5e5. 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/QM4DW1584233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe448b5050b10a1b81f9a32fca7bf7a3c6aeaa8fc9a9cc9b968f9005f1f01db21. 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/QM4DW1584236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d37e971f87779a75aba4450b31795f07813c203d2f5de4a80631a4d9375600c. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/QM4DW1584239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734363d6ed08abc1d4fdb2f1fe792bc17b4b400ce53e0d97d26d2234142c62bb. 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/QM2PV1510893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1b19e69a076a94fa0ecfd87660b1d01820e617e196ad3b9877d1292b33c3a7. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QM2PV1510895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d39abd0b13ededff9e35eac890c3fbb13037d95054d713aa65bacde6a0bb68. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QM2PV1510898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17880fb367299ddf2a7061582cf9e5f3194cfc9171c2d9b76130f6bf39d16b40. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QM2PV1510899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7226721dd9ac8414b509d1b751ae923a3ef474b57d0c27adce57c861a88d59f9. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QM2PV1510900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc387878e28a37cd313f836186646943d5ecee35eb6fed14c011ae02463f7e92b. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QM2PV1510902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe409908db9005242c23790ac7e500ff1c718aba59e464a3ec3f5ac23596ac8ae. 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/QZMEQ2060254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446d36690fbd9c8cd84098fc3a8436768a0a0f456460c94facb3971cedaceb70. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QM2PV1627547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b5cafc537467b49474a16cc0642b91ec4b5f3fd62dbf2e3ebcfab242074e0c. 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/QM2PV1627549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ef99fe8f31ccd1704d5017ee317884e4e9ba0f16c853a1100fb82f4b8c0603a. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QM2PV1627550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410969d48fa5800784eed7bfb9921fcd7f7d20986950a94ec18f00893f32d925. 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/QM2PV1627551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff9654eed4f9b2d237096b3ae27e2b754b0c5a3b546dd2895285818c91b642c6. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QZ4JJ1726616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77fcce9d19c77343cd538e8d283674b3f6bb21d101a7274f4d75ce783957cf50. 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/QZ4JJ1726617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe7b6e74c38381e6a864e700a450badd4eaa0e6f569e3bc82feb703ac3cff1f. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZ4JJ1726618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9154407e2ebe3f887538e6229a2c63f509390962fc3c592c5c9de68acf920838. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/QZ4JJ1726619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc93032a6b64841216c9d001840d240e199a1701afaff5011a6c8109c3040846e. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QZ4JJ1726620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3ac9f86416fdced2aa5ddae9e8ea543384ea884eba0f9789684960dce2211c. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QMPKX1825659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f706825741e2a45855763f556f025b128edbf78d7c2dea4654753c2868ccbc6. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QMPKX1825664.
The Sense of Urgency (Inspired by 'The Outlaw Ocean' a book by Ian Urbina)
The Sense of Urgency (Inspired by ‘The Outlaw Ocean’ a book by Ian Urbina)
The Sense of Urgency (Inspired by 'The Outlaw Ocean' a Book by Ian Urbina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b70a8677807f068e480822a5c7b504314f6346a66f765ca90c51e36da27b535. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/TCAIA2467126.