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 0x7adea9a95ec8fdee75641c85f7ac22bb4f8f5faddbe253e0ba1d42d1c0867a48. 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/e63f5a59-3fc0-493e-9a55-86196a57c648.json and https://artists.proofprofile.net/proofs/artist/e63f5a59-3fc0-493e-9a55-86196a57c648.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 0xab7cbc0b241a441539b1844409cf0133c60ba8f6e1867a690f10a457675b9770. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:55:01Z), 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/SEPQA1000030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b08c67d08fbbe0172452bbbe9a8d4d5c375ecb53e3029f365b880c22ea657b1. 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/SEPQA1000133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eda50f6a3bbe96f5109b4c36a35ea511a9d4db9fa844a663a8c84de0e4a57e4. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:05:26Z), 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/SEY4Y1126301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9f9d57d1b8066120a9bbb36c2fc4b9a9912bd896675d310a189fdefd7e2c6d. 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/SEY4Y1126302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19df5f56ef5899d63fc1fbd816431c9611b1d3a8285367f72aa6f235cf22e5fe. 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/SEY4Y1126304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679c69ebfd7c51dd68ab7a68d5bfecce19090de08175a2b994ae7d88b00cbbc8. 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/SEY4Y1126305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa923083e2f47a632cfc28444c879ec9c407b773c8dbff96662821492fbd0dd23. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:49:44Z), 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/TCABY1471457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c25510e0e431d52b09dfedd729da7eabdf0a8548579260de188d5538b73e57. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:03:31Z), 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/TCACA1485153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1537d501e8bd80461d39160798e51d758187f123c485ad29d75cb7cccca3950b. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/TCACE1515875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4cacb6e3111c9bf5e3d791feb4e9f61fb4ec56ec11c94f511a4bf47af5a367b. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/SE4W41700201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9071cdb814ea277c6a6b6ea5b290651e27d2b3df8251bcae6333a4669aee1e1b. 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/SE4W41700501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa893f47434497cffd8d5276602504f8dc62a260829145e879c53328e442c03e4. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SE4W41900101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa893f47434497cffd8d5276602504f8dc62a260829145e879c53328e442c03e4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE4W41900101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e6c03dcd9c79a6b490f89aa4b7718546801827b825500ab138ba5635a855dbc. 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/SE4W41900402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa9a916cb3f7edc0bfc8cdaf6b69e31dff09f7c9f43e90f6711012b7c9eeef6. 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/SE4W41900301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c91988d497ea1ef3e0f79d3fdbfbd88bef9eb7a625902906201abc70a8d0888. 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/SE4W41900404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e5951e4f753910d732623e25543553553e65dd7cf23eb2713feab05b693135. 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/SE4W41900405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1596f081d9b1b7467e879fa05ac2c83de7a271776a5a28c069a191cacc71d571. 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/SE4W41900406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444dc6d36f034325e5ef8480724509979fc635cf12660ec6458591630dadeba3. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/SE4W41900201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49fedf4571380ced46c25bef23b927fbcfb136e0766dce68e72b622703917194. 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/SE4W41900408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb654311b404be42aad31e82af520c56b2a5961879e33db1426a927a64ec4c1ff. 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/SE4W41900409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x075e46c4f691177703087b34bc44b19e0950c4c523def3647139905068ca258b. 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/SE4W42000301.
Pettersson (Cervezas Por Favor Boom Boom Pow Bella Ciao Ciao Ciao)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0737ce4507dd4ac00b5a9819f570449512c7ee4ed6969d9d6443861508bde25. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/SEBGV2500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c82630b6f74c108bc865b87ef3265896b90aedc8718bac06d74fa7c01c937a3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NOQWV2201200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1120ce22caa8938a725816221b014753e65f7314c134b3bbd46d0ce40bf1f8ff. 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/NOAJR1700026.