1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xab75c161c3e43a8fdc2556367b9b0aa7a2edf882a1d87a5eb428803a494b4be1. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c3d09165-7ac6-49e2-b2f3-dcf4ae8d7851.json and https://artists.proofprofile.net/proofs/artist/c3d09165-7ac6-49e2-b2f3-dcf4ae8d7851.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 → block OTSBitcoinBlock must exist at that height 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 0x5497f28176ab84d6b8f17dac6bd8de61d7ce5109f3c0bec9ecb74dd708a818cc. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QM4DW1850001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6522de16bc5b53c16d7970e09fc18d38f877edfe8e9fd24943e3e117a437ee2. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:07:11Z), 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/QM4DW1850258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3897376dcecd121befdb4aee0b73afdb3dfb2a0a391b199559cc2d209d56bbc4. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QZCE61846950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e179884ea0dc38697dbaf5989f18ba15877c6472f1d7bcd26ca77c1de18c004. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:39:08Z), 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/QZDA41850884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0914dbcf948ba384c3efad5d57ae5bcf9dce7de91df16d3f5550901164b69e49. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZDA41858912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f83747c782cd0c3f41fa9e255ec18deecb116c7db35bb71bd5217163f3a164. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QMPKX1849664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd34f951dcc6146c4a22556210ed67fd38ffb9191ce63347e9dcd65c0967de503. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/UST8K1800730.
Callése Viejo Lesbiano (A mover las pelucas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f93e2c8674a7175d422385047a4c59106a40ddd58205007df70b9a73b918b20. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZ8LD1934854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80d70ed509c15b79fe973fcbf748af6bde22571229f951802792f60cc632052. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZES51915307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1116f36e538c68b26dca51487d2ead80ce4b31d1d03ddd7c471dd11294e78c97. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZHN91948009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed6a2143fa30434fdb4d7eeed91820c80e845161fed5d48343727c1c27b1282d. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZHNB1917095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cbfb9e6586b5d7c8f6eab6f18c91a05675032e82ca3c7eb12e12a358acf964e. 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/QZFZ72090041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5533f8f71a774ba289ce37ede699e44c0f42c9b7387fd9717b34ffe34a1fb4. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/MXC242000063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6d846213dc33bd0fd87cf11453df0e5dfb06a2dd56a1ece4710e2a1ce1185b. 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/CA5KR2119451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b4d0723df70928bd676790bf992e8e38a17738b1db720938e14d8deea0b56a. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:03:58Z), 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/QZG2X2414040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc581a8c320386b6965fb6b6f74ec12ab48c84eb29cf5e7c7510e67945872bda0. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZG2X2502470.