Mo Willems is an American writer, animator, voice actor, and children's book author. His work includes creating the animated television series Sheep in the Big City for Cartoon Network, working on S
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 0xdf4310ec28ce6e7526a56f6e0aee3fe9c438ffe1ed1e4ea84fd6610955806ddb. 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/d9076fc5-1d2a-4350-8649-4db1933e734e.json and https://artists.proofprofile.net/proofs/artist/d9076fc5-1d2a-4350-8649-4db1933e734e.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 0xb5a05ef52f6dc4dbd99d05ff15c5f7bacde2b5cd5389da8fbf074f49ec12908d. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/QM9AA1424156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ad05b16236cfecc23328cbed6bb0637deaa182cb298fb6deb0b24a6bca2299. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QM9AA1424157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9cf18ba6eb22e639a450430e7dd3894fc9207ec1e0eb63df4708ca19812db69. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QM9AA1424158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c58cff5318cdf8a0a6368efe1487c80c768ef5766fa96fe7c6468be0d6b1f81. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QM9AA1424159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe63d471ba8237fa584a73eb1a166a3d9df0bb437de1366debb45ddb9aa91394. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QM9AA1424160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b5f74331f447a7798a4ff497d7958acef75616f339b4e0c5c1eb372116e779. 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/QM9AA1424161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c2741090abf29d75f9c69c8ab1c8f24870b0b5d83a3378c8a94f2c7d0d20dc9. 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/QM9AA1424162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf23fc51c8d113c79ffc62ef4d36b4ba415f4099475d4a83867508d5a810d1ed. 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/QM9AA1424163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x381452a751512afd82c9f0b6b7f6f0bafd7b8e0dcfee047b4b5f441734ca474f. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/QM9AA1424164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff06f069d4fb2f4283de3540c5e5966cc6147a9cc3b38e9f72dff2bc884eee5. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/QM9AA1424165.
Naked Mole Rat Gets Dressed: The Rock Experience!
Don't Let the Pigeon Drive the Bus! (The Musical)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8032f9e0f7ac2d1243d4005374297322a81677a535423dd9e081747cf130c6a. Chain 2 (Bitcoin): anchored in block 957632 (2026-07-12T00:10:15Z), 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/USDY42105468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa810a8266dddcb40497189226c26a26bdb442f5c91dd5aa41d8f89731300e689. 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/USDY42105469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655d815ebdd0cc8b698dc3a250adad48260623ca6d8aec9376b793fdc05a8369. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USDY42105471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69b7028a0ba91daae309007454f46dda9c4c12caff9e7b4ca076ef96bc865133. Chain 2 (Bitcoin): anchored in block 957634 (2026-07-12T00:26:43Z), 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/USDY42105472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd04c616ca7d43fc2f8d0bf99fc617b23a965de2ac86ed18795e1895b67959640. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USDY42105473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53915fd9fe7879ab9619b88a9736aaf04ba04844e63b2fa7d274ce3211776241. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USDY42105474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x873f30fd45e33c65723d9435c8025a2889144db0565098c1d674da4fc3ac6dd5. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/USDY42105475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab060536ce98fdc024f98f86e9673bc3482b392fa6b170a53ddea0db431980f6. 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/USDY42105476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576d1be99c89d745d6a47f04c193a6e3f29f7599f631991ece89fd0f069363df. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/USDY42105477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3daf59d8296b120a7c51eb562a1818d465158c6cebfb9a347910b32bbf586576. 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/USDY42105478.