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 0x76f58b0325bf49901471bf4d85e7dc967c7768e9a0b33864f4dc4177f55be272. 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/6c85479d-a7a9-4add-beb3-d3e86601012e.json and https://artists.proofprofile.net/proofs/artist/6c85479d-a7a9-4add-beb3-d3e86601012e.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 0xce670726dc14589f19f2373beb6d1a3dfd087384af69c6411dc759fb72b5390c. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/SEPQD8821010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb86129b02f05a45c7ba106a9d1bda800c3d66037af7dea0497d90139599904ee. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/SEPQD9020010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e981ed163e5e99c39661f11163e14f5d95317c1049bf1b805af50551d71156d. 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/SEPQD9021040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186df0cd29a339ac918462df2f6f7e16fac6519325d469dbc5f2200386ec3375. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/SEPQD9021070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81a6b7522724f119a1d5c90cc62d5e2202ca9eccb713069b41c6e5cf9360abe4. 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/SEPQD9021090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe22b1f29433f10d64d093dee46b0e4e81c6029aa8c4f6303b95d3250f2079289. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/SEPQA9202050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3566a7e0d2627e11bb6214132ea292f4cdaf65345b040fea0c0ea41b5ce76b8c. 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/SEPQA9202100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d840f9f473532576012e82bc86298c99f002ae0f67a7bcd7eb786e873b7d2a. 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/SEPQA9202110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3115e90da3274bc1ef5ce2d760744004c6cbfb40ee55843cb4ee4796764d0d42. 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/SEPQA7202020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15904842aa837cfd8260ad8a90f95b7f7a731f6833d0bc011e962fd5f0867cb0. Chain 2 (Bitcoin): anchored in block 957613 (2026-07-11T21:37:58Z), 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/SEPQA8202030.
Escape from Pigvalley Beach - 2021 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38f0a736a247ab0a20c10ec70239017ca2dc293d266aad6142b688b1e27a2fe. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/SEVVF2100803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e45bb59b13966fa5ab01e886ec2bf7703801f0325e1bad827f600fb36b86e7a. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/SEVVF1100102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe10068ce9fc2d8a9ceaaab5c894b79486d933eb04f19a23e0065311f0736f5. 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/SEVVF1100105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd835c6214f665e5097ced207973b949e4d762f845718bdaa4d3f414673819c38. 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/SEVVF1100106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x697ddd6facd2a7fcffb2ea79d4639145ab87ad502164b512c57d782e9bad9d9e. 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/SEVVF2104401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c45be7f17351a7718dd4414c3a7b66f47aebc4ffea9313baee4399dd24404d. 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/SEVVF2104402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8596ff92da7b419b7030e33f593eeb5a21f39ae7ad0b07af764b620d0554b3c9. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/SEVVF2104403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb8f560fde3c50dd168aff6683c1d29f14c84c04f603b1345f49d741b22e9e1. 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/SEPQA1100228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa2cd889e72c54158b5d19a7d60142ca9b588721187023551c235aca6858aadf. 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/SEPQA9202040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa2cd889e72c54158b5d19a7d60142ca9b588721187023551c235aca6858aadf. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/SEPQA9202040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c9e07cbbaf7583dddbaf1a47cd3d7ed03daa420af66e54ae8450bdd970ff083. 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/DKAXA9548003.