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 0x67c3ed96facc781b4d3ac1384b8d0d47716e0c3700ccfc23169176eeddffca90. Chain 2 (Bitcoin): anchored in block 953660 (2026-06-14T17:20:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/52119bdc-bab8-413e-b16f-9c94587f4920.json and https://artists.proofprofile.net/proofs/artist/52119bdc-bab8-413e-b16f-9c94587f4920.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 0xe3a45c532a8a25c614e39f7bc20402eee127f794724c03bc5f243eb352e60cc7. 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/QZFYX2428407.
the petals that fell from the flowers i never gave you
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1493bf4aaf57873e4ff1298199aabd10fba219620a99cea5e141f83c6d0a63e8. 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/QZFYX2428408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x130fb720bb05ef3abd9c155ff2f250f668d74ab9cdda19fdb89decafed6755e7. 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/QZK6Q2499765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6872836472fc889a3223c9e3884a5a36949dec88acf4b28e7cf4eff815f48ad7. 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/QZK6Q2499766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf870844ffa55013c015f6a47a3510f035b3d03d16be0d2e1e3558e9c8d469c40. 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/QZK6Q2499767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb711f369ef55720915e49e2cd831a9997d3a035de8783508974c614617ec79b7. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/QZK6Q2499769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e43ddd17444dfc8cf84538c6874702bf0743e7e97f3299b99f9d8f8de921761. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZK6Q2499770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb553ed7e2e1cfac89ed5625525302db7d7fe3fe71ab9823d833b4a0813f16e3b. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/QZK6Q2499768.
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 0x43ebcf09a6bcf957ca8a3167f82237176985504534152550b9d9b5bff3233db5. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QZK6Q2499771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb6f6b6e49d74326cd6c1142c990d64a88f5c9a378718f43a240239494f227c8. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZWFR2377000.
Matilda find your home/ I don't think straight
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e0c43e48d3aa314be18c51deb81d831b2a4cea28bf135b9109c93fffc36cb0. 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/QZWFR2377001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2eb232335275db06e6babf2a533bbcf5bbc9747108d09a7e27f6c3c455e71c. 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/QZWFR2377002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d3f671c2c2fa3dbc95521ef2a5b97677df63455875a07e7e994e7d6f77aaef. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZWFR2377003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b5826adec7fcdc4660cd7f3b9125d1f0a20240e09c830a067ce0104c5b8a05. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZWFR2377004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad00fa98ec34d97cfc96b644dd06dc67e475d14fb1fd429867dd50b7d400c18. 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/USL4Q2438770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7080d161000cc59e4b1ccbf7a171936b9905e7f09f2e096f72020025429531. 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/USL4Q2438773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c967034dc620975b014e1a7ef4eb7ac706ac758ed2b6ff1386aca5149d77d74. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USL4Q2438774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91eeaec282245a14a2d143e788c60766e82cf5a791206c313f25d06185e13648. 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/QZTB92428146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df94290fc1a233f1c18da57bf2ab75ec18418b35e8eb3402c18c71e076d5171. 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/QZES52495423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7397243c8548a0081fe8ed72c215586c555655e1e8541c0234827786e7ec57b4. 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/QZES52495428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9072e829c98778cd922dfe2e6af78b2c64a09551883f20bfbc116ba28f11f5de. 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/AUGBT2487960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabe26b4dedc02f2a451609d3960bbb00fc47e8aa1ec19bcf425bd8bc3847dee9. 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/AUGBT2487975.
sabia que nunca más volveríamos a hablar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d3fc03998673f075c1901d437c41cbb94622abd71c2d856be42a45719b9705. 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/AUGBT2487976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2397fc584847a7e6d8e9b6458231e0bef4b361a46c4abaf51901d39df98a0d4e. 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/AUGBT2487981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65fd1bfa6ae76c9f8f23284e8ced5ab469e70837d035424188cbda1c6df7a55. 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/AUGBT2487987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7984a7c5a851797294adafdb8beb1b4a3dec19ce27158e5b4b7598d80f305d18. 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/QZWFE2475916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb128ecbbb4c542abb6f1e4418787e9cf4695a021389468eb7c84ed80331d3d79. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/QZWFE2475918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422a7fc835eb2b2f21454b6a605afa15c0f72fa753cedae372ee6b2d326bffcb. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:10:05Z), 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/QZWFE2475914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb371097edb8a290f5a4337358e8224961d16871f0442031dae343088a46a2a14. 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/USCGJ2578596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a5ec6323c9587d8aa7ef0a7bd6741258d4c0d5a4c9b02b0d2f84cb5ec62dbec. 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/USCGJ2578598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf7da2d14c0df3edf5626707ea23fc619c6d3dfb1c17144b09fc8a845774bb28. 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/USCGJ2578599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc929a9062a334ea29489157cecf6359c5caf76d2666ce57d687b4124642c070b. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USCGJ2578601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e79d1654f14cf14df794f2f9c852caa28b8d6719dddcf878b103c42ee160f3. 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/USCGJ2578602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839ed1c747256d524b59aeae47cbc61f013e99ca3ab458a77d3def5ffec42849. 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/USCGJ2578603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48bcb5b21dd8078d8b27ecc51f2e417356dfbc8e1d08bb3c4152965b0b5b0d8d. 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/USCGJ2578604.