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 0x4740073bddc2e8bfc60b46838f02124e01c369819d33cd449a1d99b0d135ec1b. 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/8d53aa55-7ca2-4f49-88aa-73e001c5417f.json and https://artists.proofprofile.net/proofs/artist/8d53aa55-7ca2-4f49-88aa-73e001c5417f.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 0xdbf78b582eaf5de3fe2d8155cfe5cc422e5ffa967199e032965fd8bfa3cc3451. 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/US3DF2209670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5489c5c1ed07f58bb7461dd99b9e6977ee58b81fdcf415700347aee653d4f51a. 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/US3DF2268515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x560dbe5975ea243bb900ad7b884df1f078943fd14dfab21b19f424319430867b. 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/USANG2474082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ecab453ea040db282ff12771d36bfed6d263ca26225fc7530214ca2bd793a8. 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/USANG2465175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9efdb56afd76b3b4a2abda83ab32f8f47422fb0099a0db28847864b7347309da. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZTPX2438029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c908188001c2adb8332197fe46fe67607d095e03fde5a185a5e94d6e684c683. 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/QZNW72402108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fdb97805665594f0662fdf0e0e249f6a4960d8d68931615c90226ff8fe7f547. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZZ972472411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72fb85a2c2e1ddb3de240146513293c7854fbc974a85076dbb45d36c30da8b07. 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/QMANG2222332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ac3653cbe9d7d38bdbf63cdfec1e460fe20f4a6982b5704e1d37547db93761. 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/US3DF2276041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311b7706a63801014a5c3392bc7d8f0aea96339163b493db37beaf3b4b20cda8. 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/US3DF2260142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7dc0fb84ead9b5cde1b5ab63f11ab2c500142a7425b99e58fa46ac84437f3f4. 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/US3DF2233960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b8fba56e3a2e3cab417bdc6939997982f61cbba536b5d1ca5d2bb318b5aca57. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T16:27:13Z), 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/QM3DF2187091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc100ab1234df785a7f45b274ed134de5776305cf689be08b7042377adcb733dc. 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/US7VG2207285.
Pensando en Ella “Ddc In Live” - The Flux Sessions #1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3e9bc50d7d5be5987c37bf45c9a4068b8ba353e7105a09ab3bf739d549f4b4. 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/QZGLM2341749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5e0783e0e76186b035c408e18deacb05a84721a61fbff1cc7b6edfe3824e3a. 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/US3DF2065666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d884a1a5c21d5c067b42b67f63f075b2e0516e1424cee247cd70d6ce500a62. 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/AEA0Q1926320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3998a1ae6c435776a311de0ad56a08b8e2a3c807cd20f4e3fa7f718c4ccc6de2. 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/USHM92010607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a693bd7638f7824586e4689a6f162a83bfd9970c284e4069cd17a334d71439. 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/USANG2133155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x195bc4e9f408cb09e6c160ab0a52817300f2285d01ae623767d434df96428bf4. 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/USHM82036388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x654e4d0ca3e87a8d2d77b12a469ce01099a10ee2be0cbd765c0c0e8a5ead7159. 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/AEA0Q1926314.
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