Robert Bernard Sherman (December 19, 1925 – March 6, 2012) was an American songwriter. Best known for his work in musical films with his brother, Richard M. Sherman, they, known as Sherman brothers, p
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 0x3c7d0b7019a40c32ce7233f592c48e939b15e65df262f51daa1020481b197994. 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/eace48d9-b8cb-4b90-b0a8-8f49e96b4fb3.json and https://artists.proofprofile.net/proofs/artist/eace48d9-b8cb-4b90-b0a8-8f49e96b4fb3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Tiki, Tiki, Tiki Room - From "The Enchanted Tiki Room"
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 0xfc4b80b6ee44559a6379db91b7b51a895d1ddcaafb4a866ca5787bc11d80ec76. 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/USWD10524699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fc1fe42bac49ab850d3d16ba906ddb867c02c34d118899913e0ce10d00c0e98. 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/USWD11365457.
One Little Spark - From "Journey Into Imagination with Figment"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2a6cb2bc7fb57982e54e6aa0c6709e7a1893e768a57831f70046e24131192d. 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/USWD10629983.
The Many Adventures of Winnie the Pooh - From "Critter Country"
Walt Disney Records The Legacy Collection: Disneyland
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac983eee23f05a41740b069a4b984387d76d8edf736e96eb867fe78a0ec74abf. 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/USWD10524742.
It's a Small World Clock Parade - From "it's a small world"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc8ae88267b23947cde601563b122b56ee2562f2d5800fb3e140212b7173b7f. 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/USWD10629964.
It's a Small World - From "It's a Small World"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d8270d264209d628accf08190093260a187fac87c35167ecf6c03a05a04f4de. 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/USWD10524748.
The Music from Rivers of Light & Tree of Life Awakenings Shows at Disney’s Animal Kingdom Theme Park
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba6511ac8b737c9345bfbdf989072e4dd4bcfb676d2079918c3083b5460d3f9. 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/USWD11677813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c697a32e8ea2bbc59e7251935df60d8bfeb5eff6c4f53fc62eee3736b722af. 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/USR1B0220019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d8270d264209d628accf08190093260a187fac87c35167ecf6c03a05a04f4de. 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/USWD10524748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4b80b6ee44559a6379db91b7b51a895d1ddcaafb4a866ca5787bc11d80ec76. 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/USWD10524699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e9d62c3f7478d900b8377b441106d6019a478c69e80f7ed47e03ea19758f04. 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/GBAYC9603891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd1f801ee88d8fcd8d708a86dd4217f0aff49bcf0bf307fa4d01d58f5bd21d22. 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/DEE862102069.
Overture - Mary Poppins - Instrumental / From "Mary Poppins" / Soundtrack Version
Mary Poppins 50th Anniversary Edition Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c23d1e89cd7f76f0b7cbc80f81d802161da346561a482373b2a151a1f280e5f. 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/USWD10423157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d8c012430d972477937010d5ab1c7214f8c86e69ca193a7c5da149e077b6f5f. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/GBAYC9603890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e5439bb64a691a0cc153764e82ff5440ac3390b9d1bfa467a49e5edae524db. 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/USWD10423999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea614ec444607d5e5e708fa3ce461d698ec8c4d548cafc4379d7142f4853e5d. 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/USWD10424006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb69c98b038ecf687ebcdeab4457b609ded7ce048ba12f5f716b13ae970904e6. 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/USWD10423994.
Air Mail/Admiral Boom/The Not-So-Perfect Nannies/Mary Poppins Arrives - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08519fc85477d38f7c261a480b6b10f7da042a3ae0fa60008e6dd7201a32b233. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/USWD10423995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77600e62d20ce15956ac92d147c1942e7a125f643bb19585cea50018224fe02c. 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/USWD10424003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x133b8d8f3454a776f339006c00fee6454d81c75126b7e4fef96dd2a115f628e1. 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/USWD10424000.