Doc McStuffins is an animated children's television series created by Chris Nee and produced by Brown Bag Films. It aired for five seasons on Disney Junior from March 23, 2012, to April 18, 2020. The
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 0xb3ce48eecf9e0713871ff549e3b99f5c3057ef539eac2627f2d41be9a5bb4057. 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/2cb81220-b1ef-4ed6-ad9f-977b4deae2fd.json and https://artists.proofprofile.net/proofs/artist/2cb81220-b1ef-4ed6-ad9f-977b4deae2fd.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 0x6e340b2a719c1072b5a0850feb7d907784eb325d40146725d8bfbd482361b45d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USWD11468973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a11a35312590252ad2997c97d0ec37e5a58ba071fce8e5f8c0d5668787b37ef. 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/USWD11468974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfcee8dbb4ef073e82a6d2c4d67f0c8ef100ef27056f5ee581f2349fa1030477. 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/USWD11468975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd277c7e4302c5ec7437ff317a60de83481127daaf51beefeee8172c2d50da9c9. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USWD11365173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2daa1810d36b4cfda29ad947b64352c522a7ae3ed28c7a9caa40910256a363a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USWD11467153.
If You Got the Hiccups - From "Doc McStuffins"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9e22c1b343c5c578d6d171821bd726145cca6ede7681fa5d8d6a842f0f3ef6. 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/USWD11469676.
Rockin’ the Right Note - From "Doc McStuffins"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb401f5c0125e4092451fa6cef7f3891362a3077dddcc95a71fa499aa1d564664. 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/USWD11469677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd277c7e4302c5ec7437ff317a60de83481127daaf51beefeee8172c2d50da9c9. 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/USWD11365173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b2439f9a434eb171d1448f30c6286df62d35c989548160e7ea1cdf25ced815. 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/USWD11365177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013f87df16b4de2f737a2cdc5669cb388e6e1047bb45ed068fae2ceb87238826. 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/USWD11365179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c640aa617b910356586d36a8dc39254cf373ae961f8ddd968d1ab344b0ed102. 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/USWD11365180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbcd98e46c85cb8924c0a8f756e76d5d2354765fcf79b9d0b5878818a107cd5f. 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/USWD11365181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d066b3c0e2c31fd799d9e39c364a4edb198d2a063698e2864b9c38cfa9600d. 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/USWD11365182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a46def1409216f9efe22d56fe29a6ee92b0397d2e323b000e1fc851843dc7d. 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/USWD11365183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490ae33b83228ac20e6ab87be27d7e78169c8b681b510ce41c89871a3fb90a24. 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/USWD11365184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b0db2172a0beed7e22bbd1d4781037131a665619790a5589693b8b517973c9. 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/USWD11365185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b683c1f4a099928c21269a8b0d27b131840b20fc84db27ac0d26ab681b9351. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USWD11365186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7515c37b0eef17bc9a1f3c92e7ec889a25eb0a646bb0511a010ceba6a891fcda. 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/USWD11365187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcfb6b39f1564f770f78a144896ecd887406f7bf1a537161fc45ad3e096724e4. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/USWD11467152.
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 0x7cbab18be5b2d3d92b44d97a655fce347163924fe3eac19e3e54eb6bdcac3c22. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/USWD11467151.