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 0x4a63e17b36c22b44424222e326b9cac627822a46cdf66d4ccee1f65ac9dcdd77. 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/0655a2b4-cf5b-4d1e-8319-76111efbff80.json and https://artists.proofprofile.net/proofs/artist/0655a2b4-cf5b-4d1e-8319-76111efbff80.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 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 0x7d0b19092b4255cdcfd55a4c78ee406c2accd5b86dbf1e1e1729aeef022c553f. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/CA5KR1522405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2901e8e0347189c0b12d3636b225ffe08218303e13800001d3cf04cb090bf7a0. 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/CA5KR1522449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a53555a17f375bebbd5a983cb06496f8caf6f72f482a8cbb9f45d341855446. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/CA5KR1522451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47190e067e74bd7bac732c438e25099392a28198f5b7f19f8627a8eda290943f. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/CA5KR1522454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d5fe4e8707459d673c9296cd2a7ac7566ffa5298a212b4255c023b3817a5d3. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/CA5KR1522455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa05f04c00a8cbe0aa532b47959849514d226c9f0d6d363d4dbcbd90f487a1e. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/CA5KR1522457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ca7431a551228557d3d50cd748069a7eada5572e7126e7ea2e4f96d715072b. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/CA5KR1522459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8faa18815f1d8516c636efb4539f860db1a05dfe4ae2375f76d4204d2e545ad8. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/CA5KR1522460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49504445f6b53d6d4c0244dfcd6027b9a5004710a3db2f3caaad453993b095c5. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/CA5KR1522464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc76248173307cc6419ce8b1b6b4a850b66f2dc142e8a834ebafa2c9901033354. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/CA5KR1522468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa719d8907d6c5f143a0a062d42c7f0de057fe947d1bf49d032b0483d236a0e. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZS1Z1643349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7870ce630a5cb02ade94acb67d01d0aeab0386fdf33a490f63c2a7adcf9668e8. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QZS1Z1643354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e301b5517b22a8213c863069c136acb87ad0c67f49ac1505f612d0f65c10f1. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/USLZJ1786894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5e38efc67407fd2edbc4fd0a0229713ffedde9d5e92ef3d16a15644ead14f0. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/USLZJ1786896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb810e5fff3589c45212c82299ef816a9cca99c9f19eded5f80bfa6678032ee2. 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/QZ5FN1961559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e1e4d4f17b0889f0b8fed8ab5a46742ce40ff4cbfcca7dca65abc65b0fd417. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZ85M1803399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa373ba6522c8f014bb00516b54406ee4f6dab45d903acd2f223c9da7be870b8a. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/QZ85M1802237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62d7c09298c07fa848c64e33b9451357cf47b6d58a86191ad872131f6a90d06. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QZ85M1803404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb45365243c0a1490316eb063d0966a3be0a7c3e9fa79fc0b9886d62e755f45. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/USLZJ1986627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58bd709c1d1fdccfd3eb403c93b6a7bdcd7254dd15260f06e89d8eaf4374e3d8. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBWUL2035627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd8f76f8de21119c6b0cbb1a85b1e4f4c66e68997f5aa46790747a8b35fca1d. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZ5FN2020071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ab6d40264439b8148345d2e22656f90fa68a07da505fb173f6a5a22ee3f810. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZ5FN2074634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ef7ec7e252b55d593351ac9e762dfa4774a6565aa1390caa491953130d3c0b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBWUL2084716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a01bfa2e4e924b0762e7d01802eac5b8650a6758384dcf4cfee290b2243fccf. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZ5FN2074653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf9507bddcf39e07042359e8cef78fa1c9cb36ffc335ada7573c9c7d41a63e1. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZ5FN2121839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd193e7ab1824bf285d67d6b46aecf2522885d5dd5563ceeb5d864af6a01665. 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/QZ5FN2121841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ce95b05d4d1813dcfe15a92b3a24d33517094a6d71a29638ad6119d4eb134a. 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/QZ5FN2121842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee354e2975e7ec2c7089c1eb5300c312dbc7c1b325e06b0d995a8bda2591bf8. 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/USLZJ2156138.
write your own story (below the perforated line)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1914366d81a220bcd90c325dd79cd4ce384e4bc2c071a1323be2e9d75aa7ca2f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZ5FN2249011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1118ecaeac3aea9ea7184fc9c3fb21007abcee5e2fbf85651e43211852a376fd. 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/QZ5FN2249013.
Loves Me, Loves Me Not (Music From the Game: The Sekimeiya)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b75101dc09a0b81992550e28643d2b9b635b6b78822e2c7f60ceb7df1cbdf1. 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/USLZJ2263262.
Instruments of Destruction, Pt. 1 (Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb580ecb9c6f1f69f6dc89160f67a967b05595d73f8bdf396ea42b0569ae7ca. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZ5FN2265515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec081f414cff39598b98e568fb28a6231814b3285022e3777da25dedacafaa9. 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/QZH5E2155427.
Instruments of Destruction Pt. 2 (Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x083e96a04f35026fd347c99fdd7990e9fd46db66ac1d15af5d73677ee8ba2686. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/UKZGC2302521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b75101dc09a0b81992550e28643d2b9b635b6b78822e2c7f60ceb7df1cbdf1. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USLZJ2263262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ec62f9a4c4ea98fd5596605b3ec9f9bd7c8673bf6db780f29f0c1987ace4b9. 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/UKZGC2303241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a589ede508254a20fd9b59133e392a5583fdd111cfede8904fe66187e3acbb8. 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/QZJRC2261574.