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 0xef70465610b48c9a635f43ffdad6c1923d7b377c7aabe1f849dc6e473a5bfcc4. 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/6155ea4a-f565-43aa-99eb-5c692b52e002.json and https://artists.proofprofile.net/proofs/artist/6155ea4a-f565-43aa-99eb-5c692b52e002.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 0x3928c7de5bac7b85100658ce5d41f727902fbc95fd52dfe78d250bd51fec6445. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:02:51Z), 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/QMPKX1757426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c88a706531b9f3090701c5d7fd0fcc3ba883ad249f0cd651622b41d56ced8f. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/UST8K1760087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ee3731020f06716e69e82026257b41c37acb2b2275a24b0c57bae466884ad2. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/UST8K1760092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x978d1fbf5457218c4de5eeeb0913cb709a897c602682f1c5b63f8b202ea0ea8d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZBRF1892054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83f8e01be3bcefc6cffabf58bf7afee9ed4ca653c57a5b008b5b323e71bb606. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZBRF1892056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8001902ab703ff1c8988efe2f279a3eb6ade0893fbf40dc85dc18919f74861fc. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ES71G2227809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf34d7b142c1f55910427209d8c40c2bc4f0bee514619c906d55df11b239936c0. 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/ES71G2105653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe93917b9d62f0f9cf094b5ae649b54757cc7dff789f0a004afe8b3e19b148d. 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/QZK6Q2024781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20837b19d9867d124d5c52b1281d8cd946710963791c40fbb68e02ad1022a626. 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/QZK6J2097828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8087524de5108368232672d2b0bdf884b06271b384d19421534051a3acecbb04. 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/QZNWY2025226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541954a8c80a3035310478ef3db9ec358a8e680d1d051bad973740a4e10707d8. 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/ES71G2218812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcaabe5f5292e20c4758c4a8db6ce1fdceed63ddb78e50c4a7a9bee6a72c361e. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/ES71G2401296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f10e0a12551483bef897be6e406b3577a695a6fcffd2be1aa3eede730d50056. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ES71G2406722.
Himno De La Depresión (Versión Alternativa En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5556e49e08940df7bb70c309e0cb621494533f0e4e9b9d878aa7b68c604805e. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:04:32Z), 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/ES71G2418170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabe2bd54c3b968beab5249c36231ceed70d7d266361cfffd3228479f736ab845. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/ES71G2422637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ced04f0bd803483427f08b05a1df3447a3b0b286df395858dd4a5bcd9b4b3e. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/QM7282505032.