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 0x5287f0446847dd78f7ff2aaf38680fe175312a18ff8f272c6e953ee53f7e0146. 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/5f0bde7b-7a8c-41ca-aed6-592659c814ea.json and https://artists.proofprofile.net/proofs/artist/5f0bde7b-7a8c-41ca-aed6-592659c814ea.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 0x0c3cd4c1c5957d65455e6c36a99541a0e6228c34c8f69a29b0b2efe3c2438751. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZEQU2052737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4b5b2a9840ca6fd150ac8a0bed750149a6feef2b6dd69b27bc129e66d5785a. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZEQU2052742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf231bdea7b050c0b0b3678e3cf26b0b5e64149950e203f50123ed3a751ed18. 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/QZEQU2052743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da3d5a85abc0972319aaa883acfb3f51897acb66bd0e908d7fdd3b1e5c923fe. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:11:20Z), 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/QZEQU2052744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4f0a4905029c65ce06b29639e0754d2474718641c403f16a516c99ebd53519. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZEQU2052748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e689ef0e1ff562526152d0f1d658a508409ddd53162757e96dd114ee59791db. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:05:00Z), 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/QZEQU2052750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e7f478b84c88366347e2449564f7c76b932906b0130df67d43afed454948c0. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZEQU2055266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56fade2d883b0e5977ba1c811ef5b05334d1f48c3d1d0a4b8d13bcdd038aec35. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZEQU2055274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5530a8fdfee6f95e84aed3896dbb00a42b7da15e742512d854235891e8e9a45d. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZEQU2055280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb226e4526b226115b128fe1f6448d14ea027a646f63ce27e1188d66d1d6e85. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZEQU2055282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd397b9477d700fcb6796a88245da084393429f8d43ae959310f02ca1e15b26f9. 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/QZEQU2055283.
Simples e Romântico (Ao Vivo em São Paulo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48bdb2b1bfed0ca78f131d2d6f87580b15c63f6b4a933283f0885bdbe0bcc02c. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:06:36Z), 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/QZEQU2052654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd37d27d8340e1decc41ba2f3cceb8992369ac480a1896901e107fd5415cb04. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZEQU2052658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f9137e86ebd59b84b03ec81b18bbdbde36212b02620770645e14d57d841a19. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QZEQU2052663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd841c58c9316dd2d762955506e30dcf668aaa8e444bdf4260dda1cd9868c0247. 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/QZEQU2031535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f700019a05829ce37ac55ad55906bf1c85a00ea65ccd3c0177db0821110c2b. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:59:23Z), 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/QZEQU2031548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838aa64bf28b9ec944939d5a7d32f18b5e860dda29c45caff441ad51353f9b60. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ESA112310843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aee572e65c6498db1a3b1446ba83a51366b6055797683aada299b964729a4c1. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/ESA112562794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69dff7fb848bff257547d43501f09354ee49faa4c593e1da6239820bd16a0054. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/ESA112562795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e52837de82669ecbbc2f077b891452b5a733b582bc05a4d45000ebfb31b007. 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/ESA112562796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14481287eb141ec8c5e9bec64b14ce8540df73be37ea8a6de7248e7cea0ce426. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/ESA112562797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b608e6cc30c595136d9cd1bf113f6a8eb124a5ac5ae4eade7444b8a7291e52. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/ESA112562798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a47d14a19509818d0f6fbb2db6bf2154dd1324e665b8bbb9738d15b2562549b. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ESA112562799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4fcd2204614c1e32757c45bb5346108cfa31de4922870458f630537531ec4c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ESA112562800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02484a4ccec8c0be5747f53af2309d53da7f0cd7179e81e1e37d187e249b068b. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:02:26Z), 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/ESA112562801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683b45bc1b7963a9286ada2e446db5627a6808beb599af86000a86f2beb890ae. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T19:02:26Z), 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/ESA112562802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b17e4d45ca1eb2201cedd2e39bc21d3b78e80e8c56e275a19eb2571c3426baa. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/ESA112562806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34369a25d3c6e1b148aa11274c3a9331c6262c66ebaa654c4bdb3ae4bf8731f3. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ESA112580301.