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 0xdcae87d73ef6c0bc0e69fed005f1962c8568656d36c09993d3da6d92c66bab47. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/28e5fbbc-39b8-44f4-aeb6-04d7f5bea5a1.json and https://artists.proofprofile.net/proofs/artist/28e5fbbc-39b8-44f4-aeb6-04d7f5bea5a1.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 0x4b8513cea54cd03f088bcabeced5fa5a5d49b234d2f4579bdf062b33ce333916. 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/BX3WU2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8974278fcc84256b45d32c8beb4603986c909f9343c5678b235ce1de2215bae. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BRUF92300001.
Pra Sempre Operante (Homenagem ao DJ QAP)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45849452ca49b4ffc36c8328182e53ad6b82524ca395ff91e6d067ccf3becb0b. 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/QZTPX2374894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85ee23672dbe48bac190c9e39b9ab2a06fccc2b86acf9aceaa48ab9ba1acd97. 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/BRUF92100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db53bb5ed5a20202a4b190fc80696fcc77a1825ada44f9251d96eab7e3ee30e. 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/BROIV2300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6b20138483a76aaeb4085514b311ed6fd7f59301e9cfaa5a547381674d44b4. 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/BROIV2300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d310b454bed8c19bd8f35ab5e66bf5b15318b864fd9dab57b8b00ab624a8e68. 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/BROIV2300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52535be0ddedd5ea685c01949de172ef74026a8c3da1a2f221c5a01715d4357a. 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/BROIV2300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6871d6a9b40343fc203177af4d7f2bad060c33e537266dd4234eb28f60eb8e2b. 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/BROIV2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f0280b6b77d4717d9f34ae8e7baa6c0e06aceaf11fecc4e96ab326078f7efb. 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/BXV602200057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e89ef1a29ba8dd356883d7424f519e73660bde37f49813e7da380156e28d329. 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/ESA112308435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabbf04dde6542131bb83ff535f8882cac2c2195ed579bd826168de3d01b416bb. 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/BXL8N2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3884052eee154ced4422c4f0b14c1e52ff42e695f094f81b5cba91816d845203. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZW9M2441384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38eaf03b7109daef165edd6691eaf5c150df8db48245ca0c5be39acdd24a9869. 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/QZW9M2441385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6966d64ea88085e2568220a13a9f2383f0beff65e95b938bdbe2fa88f0e35b5b. 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/QZW9M2441387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d3c05463b89b0ce33c6fe826481ba8d141d0e4ca0b64843ad756d23273cbc9. 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/QZW9M2441386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d98b5989c017299a14cac8e00d08a79c635188239a4640e5e2a4d18e7a0f890. 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/QZW9M2441388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8994cbc48da0ed32766bd9b2a25a6ece734a99ddc5a6bc6a2c7e5d385240b08e. 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/QZW9M2441389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6493a0db624861f469a403bfad69d80815956645f02bd94926cfa5d682f9ca. 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/QZW9M2441390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f6d815cb6c17301bbc784a564632843c14636e1bc0af865ba747c12cb39cfe. 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/QZW9M2441391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aba22d3f8bcf76880b261b4dca6920ccde7a223a5561af4cbafcc1d0400192f. 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/QZW9M2441392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6db922cb9aeec12a6c2bbedc0046167043d7c29c64c9148f2b74b0d7e1c52a. 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/QZW9M2441393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe823adc628664040ee7ab679dedbaab1a32e4cc432a368502d9e315722ffb30d. 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/QZW9M2441394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b99d31693e889606d7bae79c1fd32db3babee02d1a4952ba30704f815451fc2. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZW9M2441395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81129d2a41d33bc27bd3bde9c3b0ca7350d3452888638d122a9809164823dac6. 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/QZW9M2441397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a15151b78a2c762d119bf5dc74053458968ccd4701a0d9bfb9b70c2b7e18638. 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/QZW9M2441398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf319ab21cf6490671791d425cb991fc04e92dd89483c75dfe4c48713feab22. 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/QZW9M2441399.
Resistir e propagar, combater sem propaganda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a853ac2d62a06954ed3a97a43f8b8f0b3e95471e61699fa0302cd769631d7e. 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/BX4IU2504534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b076c05ccb88aff9bd5d85c0552feb86cd165de19bd33448193ca88ba88bdf. 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/BX4IU2504535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617948c6f527d410cb213d30490b4f4d7b029ad0eaac190ad3316ec51d6c461d. 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/BX4IU2504538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52bcd5fa13c16abb7d0c554ed737bad2614472ae23ca8b361a5257a0cbbbda7e. 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/BX4IU2504541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311478d5495f5c51ab48fb1248743dfe915d7e5056a8af431babb50ba9eba138. 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/BX4IU2504542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96036e3358de86c878abe114dd87968389079207bc45d52ead6ee40f48fe2e0a. 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/BX4IU2504543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7034746f8eab029830bbb7615d086c62b0b97056b14846e83ec207cf96f31d39. 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/BX4IU2504544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd203e8061b5d70a7925c60c637e2445396bfbe1932f824fb5557c0ec01e78e23. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/BX4IU2504545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b8946a370a25e79cf8d278ce8ccb23be53fd2ebcba9bddc0c33808885a3452. 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/BX4IU2504546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ebd8bbf3e867bf3c1bff0fd255c9a44ea593aa7d7045cf4a44e1c664633523. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/BX4IU2504539.
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