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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6959cf5c12ebd9cf4a0e0d6c584a0e59bf8308037f717fd5c8c4dd1c1e49f9e. 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/ce5c9e24-8e05-4ac0-b557-9c67e97ea275.json and https://artists.proofprofile.net/proofs/artist/ce5c9e24-8e05-4ac0-b557-9c67e97ea275.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1026a4bf01d34c1736d661e071b5bae78ddb7587ae5b5e80b3cff2310e4adc35. 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/QZDA41877340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf7aabd2400cf5bb4d1ddf1f2d15288593e49375a08142e067f6358097e4fc6f. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T14:39:54Z), 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/NLZ541801700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b134c201fd5984628173e04086574ca8baa59e86e5bbb4a8590fe13682e41af. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/NLZ541900749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4129accaf769602babd98ba6d369f0fb78641dd7d10774721d76c5b402d03fa3. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:33:40Z), 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/QZFYY1917698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8596e639e8a0f7cfba00efad04cf2716378c1869f772534efbff3c973378662. 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/QZHNB2072363.
Take That Step (Inspired by ‘The Outlaw Ocean’ a book by Ian Urbina)
Take That Step (Inspired by 'The Outlaw Ocean' a book by Ian Urbina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3639afb3c89de74e421eaa05f9e1137dab28b2dec821f55d6fb678291bf97b. 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/NLQ8D2300287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x698fab1139e8f4612e6e6679e005eefc5a32ea1f481c1602c23b81abb9c4b60c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SE3GO2313901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54a9388109234ddaadae8541f44628501dd05f6d424600e643ae3e2bf7dbef35. 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/NLUW22402411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf360fdffa1cb99619321fd6db5b3f60647e337a456a77c4c88f92cbd64da31df. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QZRP52474065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2943ba6aa9193bfa268cfa650ea73111af89f57785aa73a19efcf9b77641a12d. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/QZTBD2449851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3285bc558883920f2c48f943e3e96a5e658372d25c6343a7efc6924f08ddf074. 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/NLQ8D2400972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x783f82ba9f3809f7915766d8ad097f409c8d90bdfd830b946d18af6d19ea15ac. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/NLD682501127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7942b609c46211c1513b09a8958c59fb463618c48a1fe86f37d7fb223c80182b. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/NL8RL2540303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5978c3e1fb9e67352fc2a63d8e852faad28704085357021dfd3f2335a076ffa5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQA1800302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cbbef006acadba85a4473afcd7ed4fdd5278657a0937aa16c69ff732b331eb5. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/NLQ8D2300103.
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