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 0xe1a017a51bca4b8a81a16855c8b2d2b46d575157547a3b138edf6a6273955dbc. 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/450ba9a4-c47f-4869-be20-0c1c407a0b05.json and https://artists.proofprofile.net/proofs/artist/450ba9a4-c47f-4869-be20-0c1c407a0b05.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Jam In The Van - Monica Martin (Live Session)
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 0x947e4e2316e63fe9ba48f7f04f84d28fb8df08364ccae9c76984bc2ef7bd7f48. 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/USUM71819706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8880484697caf340c8c925503b17057c511372266e7a56e74bd0bc7e390ac231. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USUM71822991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b2483aa78176cd8540ac154c409aed9a7641ed3a05db36c3bacc549b696524. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USUM71901924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc058a7c1bf04a01c4175bd55cd1b24f5ca4153a24503ceb06d9e5801f4cd465. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBKPL2288107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a71e76214795dd478b7e10f1ace8e1e1de972f868bcca17585d953020755c2. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QMB622300186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe554b753fb480815ddef67d40d3f7155208b9cddcbba893ec215764db6040d0a. 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/TCADW1815720.
Deadstock - A Shakey Graves Day Anthology
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f3c87fcc02b300a48b0529eed8409c40d69588f3c9981608273e34307dd2d6. 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/TCAGU2358799.
A Song For Leon (A Tribute to Leon Russell)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a71e76214795dd478b7e10f1ace8e1e1de972f868bcca17585d953020755c2. 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/QMB622300186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a66a5b27341b0f23c3406d1cd1ff58171e409339aa8f5cc2568bdde04116c3. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZMEM2307768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510360ac308446fe4eb691b6fa7552c08d7289b0e8a793725e327f9c97fbb7e1. 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/QZK6P2262648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc30f19339c71650811c84dd3e5695e7c724f9f9e27aa51b58eb4dc113e820c0. 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/QZGWX2037853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a7c9ed24cfc7fb0cd6c34420d0549e3aaf2b7ef3fe86aa01a305d9066f9d3f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZDA51882975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e31899fc69c679f9f046020723437fc3e978257d7200a807a327c6054dd969c. 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/QZES51855431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e1707abd5b8541d96595c7a28910f95d007bf9da8bd812ef0dd6e543078e3f. 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/QZHN91935602.
Fargo Year 2 (Songs from the Original MGM / FXP Television Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3201a68e0c1e5bf740bf0b4b55caa9f039f865ab998c40b372a569d8e8ba77. 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/USQX91600262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc30f19339c71650811c84dd3e5695e7c724f9f9e27aa51b58eb4dc113e820c0. 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/QZGWX2037853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67829cde524330c92006884456f7a2dadd5296bf6622978e21ae7d6158de770. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZHNA1960298.
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 0xc03cd5288529a46c088739f63cf0cf6acb458ebbe0943f61482923ce913b60da. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/USFMT2304511.
The Music of Ray Charles: Live in Los Angeles, Complete Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf04eb131c5b9f1c5980897e0140cd49374903523dc46dde9bc4263a316b5091a. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/QZFZ32117044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ef714ccbe3d9f5e22f1366a3c92828ffc275ef02afa970a2c6e04dadf0b819. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/NLH212200129.