Denise Holly Hobbie (née Ulinskas; born 1944) is an American writer, watercolorist and illustrator. She is best known for creating the American Greetings character which, originally unnamed, is now al
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 0x9b3d63d84884ff237476f753313a1df1f50de64a2c45159a3624b5d98b04269a. 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/de01f7df-c61e-4656-9fb8-fa777c443b1c.json and https://artists.proofprofile.net/proofs/artist/de01f7df-c61e-4656-9fb8-fa777c443b1c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Be the Change (Theme Song) [From "Holly Hobbie"]
Two Is Better Than One (From "Holly Hobbie")
Music from Holly Hobbie (Songs from Season 1)
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 0x7f1f6ec02032e0c56fc2b7aa5ed1adb84c69f5a7af8cda599d2640852c6a2d87. 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/USWB11901220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e9b2c9b57718b4e062c8e55f680c682f07db71d7f64b38279aa8474582a7b3e. Chain 2 (Bitcoin): anchored in block 958752 (2026-07-19T16:00:28Z), 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/USWB11901223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa253656fc0bfc85bae1678ce712ec98b0b0bbd97fc3f86d10824938d66ac64cc. 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/USWB11901224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a27067e930eda915d34bd665be34500b5a9f0af67af77f54ea1cbf0abb25038. Chain 2 (Bitcoin): anchored in block 958613 (2026-07-18T21:35:09Z), 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/USWB11902963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa620458e17d4f54158c279ca5f907364233fc9605bc378e6f469ee383696a451. 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/USWB11902964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0ee4e428cb6f81792ae45414c35437b5288651412741003231a76c93b9cd8a. 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/USWB11902965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d18b9036a39c7af4de15d7439d07019fea4760dc8524c9100ef9a7dea09d25. 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/USWB11902966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fed3e27ca157a8daf66bc219d073de6b3561f72651d1c63ff0f0948cadcb632. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USWB11902967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3613c6575d8a6e78ad9ea5550ef5e3f9988b43aa61d3da4bc4fb763eccf32424. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/USWB11902972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa620458e17d4f54158c279ca5f907364233fc9605bc378e6f469ee383696a451. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/USWB11902964.
Wouldn't You Rather / Be the Change (Theme Song) [From Holly Hobbie]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd1c926826993ddc61376c9cc34c4fc11194c3e8cc84fcee8cef006bc653032. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/USRH12103788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae445eb0e93df3c02154bc1e74677717e245477b29c085ad6936e75bd0e87f0. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/USWB11901408.
I Woke Up Like This (From "Holly Hobbie")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e402cbe63e79687de5b92421dca80be5c24a36e8a428ef5899aca72ac46dcdf. 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/USRH12103790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8618eb074e9d6da0d2fcb984a60a9dcd40529dedc674640331f9f5d20fa0554. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/USRH12103791.
Music From Holly Hobbie (Songs From Season 3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f3b247d14493da9fd6d5913a8bfa11df9261045a52a1fae6e0ca1746a36b3d. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USRH12103792.