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 0x9cdc68ef5bab5ff04d8c0f983eb2b63f63542f3ea359322defe7bbca981be500. 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/fec9207e-f27e-46c8-8879-4189ed6347d2.json and https://artists.proofprofile.net/proofs/artist/fec9207e-f27e-46c8-8879-4189ed6347d2.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 0x5ceee5514d4485665ffa2ab0368a3131da5575d6662edb533c967ee4d369417c. 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/TCADN1817351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x358fef04f99c57f56aa2570fe91af1e15fe125e814b73ae70da10b6a1227148d. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/TCADN1817352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a36d6b8c8129679573169ce9ed13766b9d8712d8229d0db3444297d62175af. 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/TCADN1817361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ce53bef5574e680671c637c7a5c39af5cd0ce4ef2028c8f6bd05e532592d20. 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/TCADN1817367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d603b2839e5c9b62a12111c843d1974f0f15c2f23fdc224393079a13d75d184. 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/TCADN1817370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d6cbbdd937b2fd23ae815a54e3238aedcadf10d06a3f137b2f5007ae2d2944. 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/TCADN1817373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867f4b49335d45bc0e9daf089113d2651ae07f51ae9f1a4e11f7b7c38691a7c7. 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/TCADN1817382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x626c90238513f04a28680816ccfd73337be616a1bd1e5827cc798120fd02575e. 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/TCADN1817388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe322f97b15e1b9edd35e3de25d6670c4f245b6f580efafb480f25ba0332a7fbb. Chain 2 (Bitcoin): anchored in block 959146 (2026-07-22T17:59:52Z), 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/TCADN1817396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8915076da98f54ed6f91811cae30db84961f2592c5a431efd3716a83736e8e2e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TCADN1817399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6349dede0ef5254c4fd3531a75df597fe7b02b1a2d9a5ab70f150f8100393e30. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-21T23:29:17Z), 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/TCADN1817403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9179c43179067caecd23a3b21bb68d7fb86d8757833df42b1800835a15076e4c. 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/TCADN1817349.
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
La Pomada (feat. Suhermano & Accion Sanchez)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf53dbfd259b7d3a2f2cd2e9272dd0048fc22daea5825a429fec733ffffb9c4eb. 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/TCADN1817355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x398137f7f6a57929af7900b8487c713f7e5f54fcce9c09f21ca95c19c3bcef78. 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/TCADN1817356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de27f0926708e2b7344fa66757bff37950777268c26194e857877072acf1922. 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/TCADN1817360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0506a7a0e18cd91d5c0fcf38ab275aaebc0293b760493fb528dadfabc8dc05. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/TCADN1817362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4081286cd1e3d77dda5d841c8ab0072f7bad867d9b295a0d1989a20ba784efe3. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/TCADN1817366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf1da41032ab6dddd2278eff80a87424b11bb026e60a4eb8284593f763df7f1b. 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/TCADN1817368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80500b8ad2dfd2e697a5fa940121576c4d669216f0174306baaa775e78ce3f7. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/TCADN1817384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9421c53ab36371ae8a854a78f48fcc27720059164aff19c607b12d7c70afd96. 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/ES6081142705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf289aaf1195ee31d6056f4ed754a488361e63e85b200dd87d50ae8b2241e303d. 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/ES6081641104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9643915e9a99edd0a2ddb58833cb70936629b836123642f4f738c85c19d3d43. 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/QM7281945461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98fe14ca8db3f10ac18132f594b7499de710fa4e045acca23b009f8c1ce27b6c. 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/ES71G1630626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67797d4323f77afd83d522efbfa823654fa867b645c6e77441800f3730556809. 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/ES16E2200418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531483e1dc692e68e9a06e741a6a4f73f1f9635c0116c920afea98f846fa6acc. 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/QZS642370559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01102bf3067f5fddbfa8fb459fc7b64fb50a1474dd4f551bef739bb3a4f2eb6b. 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/QZ5AB2064373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01102bf3067f5fddbfa8fb459fc7b64fb50a1474dd4f551bef739bb3a4f2eb6b. 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/QZ5AB2064373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1fdb2f01138834efe2d0732b1cf07875d1e6ebe47eb6b5272458d4a9f7552f. 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/TCABN1349153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5938f95acbd3ea3379c44bc724a86a3a9aee1192e7ea55d94b4c6823680364b2. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QZW9L2373343.