Blinky Bill is an anthropomorphic koala and children's fictional character created by author and illustrator Dorothy Wall. The character first appeared alongside a kookaburra in a picture book by natu
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 0xf3d8e3149c185f12e9964a67d8324e63881bc8bdc4a6d51e46d913a5377e7bd8. 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/edc7fa5e-2428-4467-8d5a-8f8ac68e59fe.json and https://artists.proofprofile.net/proofs/artist/edc7fa5e-2428-4467-8d5a-8f8ac68e59fe.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 0x595017c5e218fa692b150afeb382646fa04555bd8d5d8b1473713b0f31c63e15. 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/QMFME2368474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d010c8b87b128d975426c736a4a7825a204c1b01d7c92b2aa443124afe02be. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMFME2368443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a0f84d5ce07969512c5340f4de00dd118c3d752c206e7ed51c28dac945711f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMFME2383107.
Everyone's Just Winging It and Other Fly Tales
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8f8cf12ce17d9aa70183d473f16f73b4a224919010e93fbd9c146fe57594a4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FRX621882020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ddc96f6c583a93b7958835e4548b6bb5d2956c84475261941d51ebb7b77ce9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FRX621882080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab32a4f18f4b8132043702a3cf57db0a712452826688a38552aaf15dc1e06944. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FRX622255010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a6ae17b64bf5195eb0a218efbd2a1b150b9f5a74542c23f8fa940fdaae87ac1. 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/UKEZZ1900103.
Rafiki (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7534dc649b11e781810d862bd31b8121b6217581ebd22fcd8d217b97151735. 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/CH4131800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99351e8bd7db6bc14b3ffd69c4338f42c6b9e620703b9c1be0c5a34eb70a47e0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CH4131800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327c27486e8f9f6f5240d63bc3bfe49ba237db5426373b1eb9d7b471d9659723. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CH4131800021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c39d430ca3178b07059f912a56845217c7c059ae23998ec4581aec92c0a36f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CH4131800023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4a44bc764168e77f30598e1e3fd63587f1961fcb1315b3f917e14d3b960b0b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CH4131800024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58fd84775b30362109491df107cb8610528edb03cfce86c9242200a415b3f7fe. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZGLS2485555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf4ecaab3870063052b7ca6056285e2308e7ead2279dcc6d7150f2f17e80af8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZ5AB2397716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae673f9ae9a46d031d70bf7c6600c0234af0a5dfd41a1acf04099f31922faa2c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZGLS2485563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22ff36147489ac5573ea1026bc996762f82586c4e94f67f12505694b576ec6d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZ2L61800038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f237682e8189c8b2072a984cf2c13b9732e900dc024984da71c47d3361b0d9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZ2L61800046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb54357660b70ab17d6ad413af16fc0cb191cdf1bc68be1d34d62a73c63712894. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMCE31701204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba18adbcf14b71500042668d42aa85f06e57fa990b8a1b37fae17c4066b678d. 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/GBUQH1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2971d6610605cb3c32fdf03c4e79fe0e70904aeb9bbb9a517e0ae08e48c4188d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US2S71898006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe619878e239be85e15524907a0a5e258f4e7122e70260e986aa9a640b7598bd0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZ2L61800056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f34d8bcb2a7eb3f02b93ce1d90a0c2a27f574f1a61c29b4532a95677e2e9fd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMEU31713678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ef3c25bb4c27f2c60054bea8c2aa56ce5add23f2ce7baca4b10b37d9fc51ad. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMDA72495472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3322e8f5bc7a1a8790a4a58bb76660dfc6846d34ce10bc19ddea906ccfb7db4a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ARC572402696.