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 0xfe1f0e8cfd0d8a30fe0d879034cc4a9677fc360cff63c8f4f2e5dd8a89cf9710. 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/62216996-b7ac-4cd4-8929-fa91d2fad61f.json and https://artists.proofprofile.net/proofs/artist/62216996-b7ac-4cd4-8929-fa91d2fad61f.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 0xefc0ff5a761a8a6f971ed38cc8d5d5c7d1a9706a8773db78eeb116cf0b0db8da. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZGLM2322388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016ecfe143e1c0273c57a8bee80aed3c0023d865ab412ffd6b0f1275714ca802. 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/BRACT1601231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcdee44cc8642852b45365bd666cfe94f7d543d28d967887be2d5adb622f7957. 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/BRACT1601242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a5cc8df46b2994363be59728e16cf938147081c22b0c2477c9dfbec0c7cd87. 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/BRACT0700975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c5c4a2d0756e9ce1d4a59da8f8b26259421df0ab8bf280b698a23eb79f2393. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/BRACT0700977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x770e603df4963e3d61376bb71d130dd78e157caf5a3ce977f6ac1d97180d3d5a. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/BRACT0700978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8abf3afd5cb080e23de164c343448c17aa3d04e402a98af9bd7201d7fe479e1a. 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/BRACT0700979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf80e3dbcf655b9da2498062d174a0372c26725df7d56a0b4df9842ef7c7686b. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/BRACT0700981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be40537b07ff1f565963c1ac066e6f59733b7219d2d88e76bbade0898cf115f. 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/BRACT0700982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x032a2f189e45adc1149943a7c336693ee23eeb9eaef2eb75021d6a109044ee9e. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:17:36Z), 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/BRACT0700983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb656c65bd368d2ca380644f2482a13fbf85c7583ccb50f6405b4a798b9a171fd. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/BRACT0700984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26aea3e8943303070922a38bb56fa2d2e40e4a86fb45719033614d40e5ce1b70. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/BRACT0700985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48c4bcc64c9823f2c29e43223c952f792cca347bf4e166ee2682402e47746caf. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:51:48Z), 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/BRACT0700986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f3e0eac7411613dfb376435e94a94ca286d05384638157735e5e633e213c94. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/BRACT0700987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdedccb38f0152e99a5a0c046e2f9fedd8b3fb5d1d61126ad21ede075fb49ed09. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/BRACT0700988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad966f3058fdee0a6f817df79352948309bc955c57db92f0adabb644a3b5df6. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/BRACT1604051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e6d18e29c24b6de5b69453dc93be18f9694483c93bc55ca300002b1b057399. 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/BRACT1604055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c23700d8368ef51fd2df73abdac13d80626da159373cfc52e69ec5eff56be64. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BRACT0800712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce6dd41492498ca8ab7824b71be30f2b7ce30b1558e885059386cd992fe6a94. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/BRACT0800716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2499a0953ee0484a412ba8865a49daa986bde79e0b91723db597dd72bdf6fa28. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:38:00Z), 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/BRACT0800719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21690b0e5471d27acfd946267c89409dc356a21993c903f51ded0de7b3572ec0. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/BRACT0800720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x798cac95acbfc70ec50cff80e0765e3b4837227f5dba0efca5e44dfe9d4aa9e6. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/BRACT0800727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856240612c93aa4e2c691f723dfdbcdbde776536abf13a4335773bcb183620da. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/BRACT1607084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x558bff3baa5c082179e8dc17820c71c3e6c77028eff9525d2d230268bbd9aa98. 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/BRACT1607085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9087843f49599e7885435ce8adccd9d1845c50b2c36f0a8c5e7613901b8b146. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:34:31Z), 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/BRACT1607087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62cdefea4caec59dbfa384c50a351e241812518e9df72b8233194cc2c5a76716. 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/BRACT1607089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3989e51af43b42d9e89d40f5dc66e823bc80aa20e795f57cf507780571f201e0. 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/BRACT0600158.