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 0x983a9a7544d369b1e7f912b70e2826e2fb9fbfa2ec04edbd8ba8a57876e41d19. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/11ce5de0-583a-4d15-a205-d25de97a2df5.json and https://artists.proofprofile.net/proofs/artist/11ce5de0-583a-4d15-a205-d25de97a2df5.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 0x91ce7ef83efedfc4deec5a426cc2d68fbae9b29341dd2ddc1abe4669fa567d1f. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QM6MZ1894836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b2e01e71575ee70aa4d436a08010e1ca4625a9b7728be7b172dbe9a48de709. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QM6MZ1894835.
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 0x306d23551aa966eacda8304446c0ea2146b9916a66cda1b1a70bd8cf357ff0a4. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/QM6MZ1894838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48fe115612f38369c60b6a7e05eda554e0ee421046c67db7b385b2d4f3568d6e. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QM6MZ1894840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1ed45d48d3a8cb7a8ffb37d1f01d17f80d2c69d9816fd806d89ccb14a1f50d. 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/QMDA61518366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14367f6942e0e950d06f6fc9787662221202ef3958dca3a4eec45dfd8f479bbc. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/QMDA61518367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a8d21155bb6ef76032d32ae4f9911cc1b4020f334cadad24513a48c9993e48. 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/QMDA61518368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f1dc1a1d07e1e363fdd38d6dbcfdeaf6fba308f095a93e849c0a613ea043111. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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/QMDA61518370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x322740c938857509bbf64fe732a093eedcd4e47a023a8c22a101f1ad9a7a76c8. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QMDA61518371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b3f28b9f515cdaeb155c706ee1267827fb9e0f0779333bd9db59c31480f74d. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QMDA61518372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b099bc1aaa206418aa6224004a41c4f6b9e24c3892532864a0752375d1eb75. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QMDA61518373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8100ce1b88f4862de84a08c5f993a672bd6349163dbacc24cd535d2f0e2113. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USI4R1043980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe428532cbddd9de3806a81707bdf1324512574dfc45988dc730bbe37528d63ee. 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/USV291354272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56156a78c6d63d309f2f26bcbc73f5ed131d7c1d8a8d92941579ba2b60772e1f. 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/USI4R1043196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec89895db99645051101faa67fa5f834ee90134f580931831fba5dee6b1fc6e. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/USI4R1043194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959a4eedd7d9ca2f993d642e898ec8775df89ea49c38b1d083852914384eae85. 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/USI4R0805404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a79cfbf09207a9f837b4fcc751044b50d806ab024ea2c2a57eaa6d1e2b31797. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USI4R0805405.
I'm the Biggest Fucking Thing in the Whole Fucking World
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd327e7ce84a50ed210f92a7ce7793c9503768b76c4d2a36857ef37c83e5460. 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/DES561692701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad27b738771c6e2f62f34e6fa6c080a256c8a5a65fea031a5a4e7d75d25fd90. 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/DES561692703.
Beat:Cancer Tours 2018 / 2019 + Continuum