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 0xeb3370ad616694fe30e490dba01f614bd615a4b03e179f640be936c906bd500e. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b36f43b1-644c-4205-a002-fc1762bf1856.json and https://artists.proofprofile.net/proofs/artist/b36f43b1-644c-4205-a002-fc1762bf1856.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
AMEB Musical Theatre Grade 3: Ladies' Edition (Piano Accompaniments)
Dear Edwina: Sing Your Own Song - Piano Accompaniment
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 0x0e69b82efad80e00d63eb2ec0971931d561d2127136925eba273667535cfc856. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/AUFFF1500212.
Matilda: The Musical: When I Grow Up - Piano Accompaniment
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3db7032aa5c37d6f8e3bac9d31bdd56e1e4d0d8260c04f8bb235b896b4625749. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/AUFFF1500214.
AMEB Musical Theatre Grade 3: Gentlemen's Edition (Piano Accompaniments)
AMEB Percussion Series 1 Grade 2 (Piano Accompaniment)
AMEB Percussion Series 1 Grade 1 (Piano Accompaniment)
AMEB Percussion Series 1 Preliminary Grade (Piano Accompaniment)
AMEB Tenor Saxophone Series 2 Grade 3 (Piano Accompaniments)
AMEB Tenor Saxophone Series 2 Grade 2 (Piano Accompaniments)
AMEB Tenor Saxophone Series 2 Grade 1 (Piano Accompaniments)
AMEB Alto Saxophone Series 2 Grade 3 (Piano Accompaniments)
AMEB Alto Saxophone Series 2 Grade 2 (Piano Accompaniments)
AMEB Alto Saxophone Series 2 Grade 1 (Piano Accompaniments)
AMEB Musical Theatre Preliminary Grade (Piano Accompaniments)
Willy Wonka and the Chocolate Factory: The Candy Man - Piano Accompaniment
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c2fdb1b23b388302cf236162ba88fb63b02efaa352f5e64ce19a55576e03f8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/AUFFF1500159.
Walt Disney's Pete's Dragon: Candle on the Water - Piano Accompaniment
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed82afbbccdc9b173ac3dbbfac623ffcfed75ff03b3c2e47b59f7572bd603f48. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/AUFFF1500148.
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
The Secret Garden: The Girl I Mean to Be - Piano Accompaniment
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e37c2f3fef76f3633f49e0dcb4b0dee9043a9a57697b0ce21294390843b3662. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/AUFFF1500152.
Oliver!: I'd Do Anything - Piano Accompaniment
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a744aab613e3b91bcd6b035000152f62c99ad04f6aeb57a1d7b4a51937b069. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/AUFFF1500153.
Walt Disney's Mary Poppins: Let's Go Fly a Kite - Piano Accompaniment
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd90be33dcb5f2ce796551b9b3d77a6335d006181611a88b959b753710c491e. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/AUFFF1500164.
AMEB Musical Theatre Grade 2 (Piano Accompaniments)
Annie Get Your Gun: They Say It's Wonderful - Piano Accompaniment
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08183821732e65816831c96746431861e710c46da30227620a94b22e10fa523c. 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/AUFFF1500185.
Seussical: It's Possible - Piano Accompaniment
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510aed0bf0ed75cdd66656cda666a7694140fea4f0620124b92e2715891eb78d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/AUFFF1500197.
Billy Elliot: Electricity - Piano Accompaniment
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed7bb09afdbc9a0d7e049c92de587cd2fbb167d9729260a928ac7fe866005f06. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/AUFFF1500199.
Matild, the Musical: Naughty - Piano Accompaniment
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4717903303449a4412751f10e5fa66f8d0b61fc1ea854e955e3619078647333f. 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/AUFFF1500201.
Annie Warbucks: I Always Knew - Piano Accompaniment
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ea0101fe7ace50963ae40966a54f0425d83affa27556db25747aaaa63c347d. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/AUFFF1500190.
Walt Disney's Finding Nemo, the Musical: In the Big Blue World - Piano Accompaniment
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d02411004ecd13d2e9f72de42d51a3bc03c76c6798dd8d9cc1a62a532c3c5c. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/AUFFF1500194.
AMEB Musical Theatre Grade 1 (Piano Accompaniments)
Singin' in the Rain: Singin' in the Rain - Piano Accompaniment
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2fc08e7363405078ff7957b55d96a1b2d6fb218d8ccd1c9d775b1eda6a3ee8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/AUFFF1500167.
Walt Disney's Pinocchio: When You Wish Upon a Star - Piano Accompaniment
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f1675e849f765c62ee1d771db0cc56f5362b29cb028398dd8aa6629c8974fb. 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/AUFFF1500169.
Jekyll And Hyde: No One Knows Who I Am - Piano Accompaniment
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38555fc82dc26d1e80641b920c9852f9a46226a9d43cd91eacd8421157724a8e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/AUFFF1500183.
AMEB Violin Series 9 Third Grade Recorded Accompaniments (Piano Accompaniments)
AMEB Violin Series 9 Second Grade (Piano Accompaniments)
AMEB Violin Series 9 First Grade Recorded Accompaniments (Piano Accompaniments)
AMEB Percussion Series 1 Grade 4 (Piano Accompaniment)
AMEB Percussion Series 1 Grade 3 (Piano Accompaniment)
AMEB Violin Series 9 Preliminary Grade (Piano Accompaniments)