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 0x7f30c92ef36c2e1579e9959fb304410990fd36a89de1493378403035a45b9ecd. 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/d19af2e9-1e78-4750-9bb1-16639250225a.json and https://artists.proofprofile.net/proofs/artist/d19af2e9-1e78-4750-9bb1-16639250225a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
An Oscar For Treadwell - Incomplete 411-1
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 0x46c4dd08ca549378d535053b463ba122363e6cd5fc03e4feb0759f392633921e. 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/USUM71604840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed1651fa93336a64fc103d43c25de7a56ea5fbbde446499421030931c5c443b. 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/USUM71604810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57eca75ca2ff6bb86fe22c00897597435c80be9ceeb57f0b35660ff2c3cf7941. 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/USUM71604827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1b700068ba165e10bf4bd72651413959b0008250b8c617ce356373aee00203. 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/USUM71604829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8539099d6d798345b8aacd176cbf82ddae9e66925b2ca4cdf7cc8ca87153b3ea. 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/USUM71604831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf0152bd78207633c7ffa0ac8063424507462f80d746ceb4d239ebcfaffc39ab. 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/USUM71604832.
Swedish Schnapps: The Genius Of Charlie Parker #8 (Expanded Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8fc97d76b9069ceab3a317f9fcd473206ec746bbfeb851188f71c3d2d57711f. 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/USF095125150.
Bird: The Complete Charlie Parker On Verve
Sweet Georgia Brown - Live At Philharmonic Auditorium, Los Angeles/1946
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3dec6399925230feb6ae5357e9fff3b70896184475ef3916e34f4b20a7943c. 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/USPR34611028.
I Got Rhythm - Live At Embassy Auditorium, Los Angeles / 1946
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729a594212de8bd773b522b1e2bd317e3147f73703acecbd21dac163544102db. 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/USPR34611032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfee7bd2cfee89df2a896ac543d33dc4c35ed36edbb74bb74aec8044c5c5e0f74. 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/USGR10200478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510093f3692c712320eb19cdbdf256a44c0841c7d6e33d751b7c5132525a22e9. 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/USPR35702489.
Jazz Perennial: The Genius Of Charlie Parker #7
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d58acb57fb1723de10889e0d25cf1578737ba365e60dae3a994f323194bc8e. 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/USUM72000615.
Swedish Schnapps + The Great Quintet Sessions 1949-51 (Vol. 5)
20th Century Masters: The Millennium Collection - The Best Of Charlie Parker
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef6bdfa1638f639b1133300927de94defed521dc5a5966bf2dcc675e3040656. 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/JPCO05000130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94675362c31cb36fb756d80d81e5cc4ecf30a5bd03af66f0c71b3d69b2416cc. 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/JPCO05000140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035df2217e97730069aa9af9821867bf9c7a785e3b7412e88b3b8a035b8fb29b. 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/JPCO04500160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x919d37ff794dd03b6c9fd4c0ef1e98164df0ab866387cc4417b6fd723bcf2637. 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/JPCO04500100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20efb79b2610b96fc645369673c4425b6dc8c1769f53bd390145ce19bdc78dd4. 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/JPCO04800490.
Be-bop Classics (Be-Bop Classics Vol. 1)
Verve Jazz Masters 28: Charlie Parker Plays Standards