Ella Fitzgerald and Her Famous Orchestra
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 0x61167a198d1a2b6a86b855efab9757563ff9bfc5ca4ad1a98745f754daf3258b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/52d10978-558e-4ed8-b665-1070ce37fe90.json and https://artists.proofprofile.net/proofs/artist/52d10978-558e-4ed8-b665-1070ce37fe90.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 0xc4cad2e5c935f3c93c4f77accf089d1216d156be2569707e0e4fbcc47450cf17. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/ESA011826031.
I Want The Waiter (With The Water) - Single Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649981ba4e57e984fd7c2cff0deb1bee513def5fd7b600aff71f785e61a01849. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/USMC13965905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235f7d11c92c16de029434256056a9b9be18e8cd643a0d8eea989811439c9a30. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USMC14067198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66d07b8bd5c57bfb852e8e909ab057a00f017d2604caa972905f4255662304c. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USMC14068146.
When My Sugar Walks Down The Street - Single Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a7f2761d36a2b528673b9b82daa0b94772dad63eeb4a9b06d70b0e8e5d94e9. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USMC14102609.
The Complete Decca Singles Vol. 3: 1942-1949
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a7f2761d36a2b528673b9b82daa0b94772dad63eeb4a9b06d70b0e8e5d94e9. 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/USMC14102609.
The Complete Decca Singles Vol. 2: 1939-1941
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649981ba4e57e984fd7c2cff0deb1bee513def5fd7b600aff71f785e61a01849. 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/USMC13965905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd271ebd8dc0d7b214a59e7969daf4b4d8b12702ce56ff01777bfc130fc4c44b1. 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/USMC13966134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9224701494dbdecf0c2963c128ce251e7f98f18df34e460e2848784284a99ff. 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/USMC13966135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d40b94a6e7c8fb5400c0d56570ef89b838f84dc34be546b60ba8e17ce9634bd. 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/USMC13966136.
Betcha Nickel - Single Version / Matrix 65903
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c4b908bb5abd6eec3869e2959500029c7537fb83ba85a095e4eec8341ffd95e. 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/USMC13965903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4908c898997ce5b57ae70a82a24e75db1269da86172c6d8993a21f6d5a9b5dcf. 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/USMC13991841.
Can't Help Lovin' Dat Man - Single Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x910a2f70359a672711d4dbe9c68dbc294246d2529bd292b20b26737c13c229cd. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/USMC14102612.
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 0xa1948dcf633c5a9b41cef20724532b2bb9ab2dd72238d633f44e893a2c3051c0. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USMC14102608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x384914845d32af4e242d97e8fb728f050d26412c49dd5f68e307a98ecc9ca1f5. 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/USMC13965906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8414c05eaa7a8d05dc13edeb92be70347f9f6dbb99ddace640aa8be191ca7449. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USMC13863694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac8749cf186ee5b735070cf01dead856e16b21a7517e78925cbb27dbf27645f. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USMC13991836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5050872cae3d2b6391136e3f7702f41d52aa3e5dacfe32ff771f317808c3fb10. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/USMC13991839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd257265203acf0b36212df4116d8c1fbedaa7043556c8aa989b4f7188684ad6d. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/USMC13991837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44e0155373d0f6c97682c57cbf64a0b4fe86ad549f6b53dd73cb120c6b991d4. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/USUM71115245.