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 0xff5fd3f7ec290c6fac9ea7000318a63319cb838e9fa23df0b82b2c0096f51bd2. 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/1146c210-7c56-4b80-914f-ef5cb082461a.json and https://artists.proofprofile.net/proofs/artist/1146c210-7c56-4b80-914f-ef5cb082461a.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 0x6ca66e79e844105d05c079f4b777b793c807edf707ee1d85611fadf26be8c59c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPQ402202400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf13bbe20ebff5f669c54eac2323fc1a4cde742e975d559afd7c23259fc44b828. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPQ402202410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251d3c0b3f0e0a9cc9ee911f840f4dbfdd35ed0d8df10222fc67cf044ac836a1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPQ402202420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1950a4051dcb3cfcbe3b5fecd6a26d1d4afc59fe12593d2d9b5fb1584323e084. 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/JPQ402202430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f4ae83a310b6251854f6935e5343298475a116be58822eb54ae2843af3e56a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPQ402202440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebec02e2448924327eceb358294c685621db4a4b300cf7d768988772b640df55. 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/JPQ402202450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc223909eeafa66e7c0af2ec2bb7a99d3f8513842c677b920386a44919beadcc. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPQ402202460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0486a3b58308fb3d7fc67797cf0114b470dd88bd242ea4d101aeee7ee48eb95d. 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/JPQ402202470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7721d3935b1d8569e05a96419f5969dea72b3723ee48b117ff9623f2f679b45. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPQ402201890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f2bb1469a10cd572377f9fdeed91e5d6124c88378aa7984780f36beb6a8437. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPQ402202480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc6c2224e690d340abac829e7ecd0b4632643c39429a67a36352e1815ab16e2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPQ402202490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ca06703f573a4cacb1cbec822d81fbdb9e402a761df80574063e9939e72623b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPQ402200320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021a7e691d896a369ba6cb3b8941540afb745b31ae7985a61bbd8a19ed355f9e. 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/JPQ402200380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x418f5c02811020e1db80915321b0f4760e44bf6ab3c88f23fa9a9f7d63a59d41. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPQ402200330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeaa296c62331d36da22ecaf414ad63e9ca92c42336b388b7b613d3e6f8b1b88. 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/JPQ402200340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16634a9100ef4c944e568b1913cbaf1ef0c99e104722de06d5c268b99c8ebd42. 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/JPQ402200350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d633bb4f6536cc88f6545a2624670898afb95a04124482279d0679a3908b970. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPQ402100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002c1a6d38603983c1d107afe4644f9cedbfeab1a81839f1a2ba5ccd156002f0. 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/JPQ402200360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x523225f30e2abf5d76e9672ac51a76e1ca1581434e27b134a2962a365037be7c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPQ402101450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde238b3ce98e8689da6bd5a6ebc3ba69cc69b8f9c40f4f7cec6d1b69871b22a2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPQ402101440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1affc56dd594edd0482f20c6c049a56b162a9898d90eea0b0550e55944087271. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPQ402200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d8f29a2e4903b68a58abd981711b37cb4cfb7b397c4f3db9a2c5bd363da37b8. 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/JPQ402200370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7721d3935b1d8569e05a96419f5969dea72b3723ee48b117ff9623f2f679b45. 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/JPQ402201890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb69eb85ae27765a412227397dc5981b3a1cd1351f2c55d3bd85c53ef2037ffc. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPQ402201900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb43932399d5275c138ead1bccaade256c3170c82cb26f30dc3209ab116b7520d. 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/JPQ402201910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ca06703f573a4cacb1cbec822d81fbdb9e402a761df80574063e9939e72623b. 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/JPQ402200320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1affc56dd594edd0482f20c6c049a56b162a9898d90eea0b0550e55944087271. 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/JPQ402200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde238b3ce98e8689da6bd5a6ebc3ba69cc69b8f9c40f4f7cec6d1b69871b22a2. 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/JPQ402101440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x523225f30e2abf5d76e9672ac51a76e1ca1581434e27b134a2962a365037be7c. 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/JPQ402101450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d633bb4f6536cc88f6545a2624670898afb95a04124482279d0679a3908b970. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPQ402100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89d3bebefee28c9eeaa4a977c58bb7b2e4b3553cca5c6ad9a1442c317d35baa. 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/JPQ402100470.