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 0xb7ed69f46984e8035e0e974e2dca8bc409bf74bfcd68f4075d76b13ecc5963b8. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/83f2aa51-adbf-4c32-a74c-8de75e7dbc44.json and https://artists.proofprofile.net/proofs/artist/83f2aa51-adbf-4c32-a74c-8de75e7dbc44.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 0xe65fd0377e17d8f01b99b3e5ad4eab1d700609a0c69a75bf9d5c3303ee072257. 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/BRD1E2100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29514d99ac701a8463f230eed67d675c2dea279d6366bc4d5d35320ad8db2bc0. 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/BRD1E2100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d81056ea0b5d9c8046e72fdb0eff6a083a1309a3ac7dd2e766b204ccb66031. 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/BRD1E2100056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d3edeb2803a955739402abef5d0a8b8af35b3304781294bb0d4cd39b3af364b. 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/BRD1E2100057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc107e84c6426d26e0a452231854cb3bb361cd20b1d32e6b3efdb2eaab5a8d729. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BRD1E2100059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2725435034a6a69e07fc1c641e187a31a7de8cfa4fda8838f1369319e8bc64e9. 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/BRD1E2100063.
Summer (Iccarus x Flying Buff Remix) (feat. Disto, Iccarus & Flying Buff)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3645f085714e8f3248015ba47fbf69fe839860f3b4b4b3a3cbca8bdb8730f774. 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/BRY8S1600030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1435b1ce6dcc63c0556a05f60646c534ecfd9838fda22c25d714755eff2afa1. 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/GBLFP1633766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a9d6524606be733e07a93bb817ba7d8a0fb923d046d6d7692f057aed34cfb9. 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/TCACS1612296.
From Beyond the Grave: iF You're Reading This I Have Fallen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dad52aa11048a7d7bcc28fca7f46b7e30ace193842687c22a3fac2a236bd6da. 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/TCAGZ2353787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4ba101ca55e92a0477ce923595959563bc7930a9206c86c0023d2662fc786c5. 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/TCAGZ2353792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbb1ccbe8c8d51640eaee6a85098947d8b8ad7e491fcbdedcb4e8ba6211daf59. 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/TCAGZ2353797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4743a6d1b7ef90d35dcf0a6f4b97803ec9091edd8f7d843c12680c5f2a47bb. 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/TCAGZ2353802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf10eb65be6459cbcf452f6cdab783506744013257703eee11d3f48002ec4b2ca. 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/TCAGZ2353813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0cf9212f04a23cbf8f2c6b7208a9b9fa60a3b36daca655b764ddd824f9e943. 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/TCAGZ2353820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9e19fff845fceada1360b91faa4a864a9cc28ba3b7ae2bb0eeb372154a2ca4. 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/TCAGZ2353836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4367a3cf436441a4d26fa539db2e530806dbfd8ddcd595b89e4f17ea752ac38. 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/TCAGZ2353842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a0fa587ca0a8743678227e6c7fdabce74eacfd3bb3760d5d08c4bb8d7bf8a44. 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/TCAGZ2353850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e5d1b25060cadded5df5127afe8be95b2b8b141a8174c5123f82fceb97392d1. 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/TCAGZ2353855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0676a8430d74d82bb03adcbf61d505d82e41dc5698f36cba15d0c10a6407993f. 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/TCAGZ2353863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a8215ba6344f7d1f18451f1939b4027021f14dabd3edc89577aee5045e5bde. 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/TCAGZ2353876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadbbc99e788027d509e0654458cff91b9808d43084ed4678d4fa2e6424a556a6. 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/TCAGZ2353884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2263f72a34bdf70e56c443cf0517150d6d3b4abd6f56381e375f1303e6ac3d6. 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/GXBAV2318986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfefc0b48417f44e36dc525715de5eee165182ebb1003ea5403bfd8863622c669. 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/GXBAV2318991.
Wall of Love (feat. Diogo Piçarra) - U & I Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108b411e0b671a7130d3ba611391677c68f8a4f2504827538e84b0ec67458a35. 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/USLZJ1733421.
Wall of Love (feat. Diogo Piçarra) - Dropzone Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8201deaf9409ca7861c70b2a558edaab90b1b9af4b874620023a22dc44f68dfb. 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/USLZJ1733947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceeed310f8bbe6076ca8da8aa5c14e1549f37b4fef36ad3f731322338fb359ef. 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/TCADZ1839494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b4d809ade531ec2d5bd8132b10513225b77260badfdaed0c5b29a6a95f14b8. 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/TCADZ1839525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11423e5a95d895fff522166b5f6665a5b3580b8197fb044b119a0e2c305d7fb1. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TCADZ1839491.
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 0x71a613d19f88ca7c180a5a11d054af6e9d01214b6554b050e04ace0769f82835. 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/BXLVT1900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc394657cecb401dd60fd3673e152a9fac7aad360bb8b0e310c674f3cec9c5dde. 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/BXLVT1900030.