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 0x475c6f909c18d25a828dda5cec5a08c1a919f6755db4cf2f21ca10a6dce10216. 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/3d1792fa-699e-4108-bef7-734cb0f82dbd.json and https://artists.proofprofile.net/proofs/artist/3d1792fa-699e-4108-bef7-734cb0f82dbd.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 0x6b83365790e746eadd8ef1aecea41314072821e21f0cd33f6461eb576f60e31a. 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/BCFUT2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1558dfcab86dc6f0e0fd13ed7110a20a986dad6f79bdc055d28278dfb8fb7812. 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/QZMZ92335097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f1e5141c702e8c10973452a60e26a48c6f656e475dbe06a65634391022061c. 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/QZMZ92335099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53521bc83641756e7c9f93dfe9ceda67f4067c721395a8f89e57f9b8ff831063. 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/QZMZ92335101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a00cc590a91867283a61931d80484cb0578177808721fca950c4b47acc4786. 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/QZMZ92335102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a21f92375a58cd5b74fde87cc9d4fdd358555ccc730a71971a88114f6c69f4. 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/QZMZ92335103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed9e328b6549768d7b68b075b5c16772507a09822568d52bea5d6b102d0405e. 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/QZMZ92335104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06b510b80268e2b34240835ce5d433388aef42de02f3c8ab0a903d26901fabc. 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/QZMZ92335108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1afdd43d6f9976829dab7c7d8a6ff8b2b0dfa1df60367b90c6cf38d01fb8fc46. 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/BXWOD2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5779d997366fc766ef4d029edda5280d89bddf5e9bf84bf0a5b12ec9e71136da. 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/BXWOD2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d08ff5b8db0ff1aed37cc5a2b06512a68f192524af49d30d443272af5712f3b. 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/BXWOD2000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b8d18d16a9fbf1ec5311a3fbbf9a16ddbe40fb13f3d3f6c36ca15808f452cd. 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/BXWOD2000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c96163df1f947022fa23f2c25e168f384d8704caa5213e5dc5eb569ae445bff. 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/TCADT1839542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01fe426eb07594cabc939f215d01aab8e4c3963b95aca4964adfc2513f1a1ce. 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/TCADT1839570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd748803b39232d93c826595b6b384cc9265e19f2d42c14e39dad7544f5417d2f. 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/TCADT1839586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c2da88f72b0f45756f5625e0bb19e01d102b7ce3e9458f3242a72fca4c689ae. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ES71G2319002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563aa097af41acb3709d1df8b3ac46a36adb6705c8a34b79c31d03671d8e35aa. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BCCN42200090.
Ta Sair Bem (feat. Lurhany & Teo No Beat)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3050716a09abe6db5ffdc4109daa75f03d8e5c75b436ab304d48eeec0b65453. 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/QZEQU2108138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f8a3d590ee16483193b366ce81a0efde0ded3bad54d3d1954880d1261ffad6. 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/BCCN42200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b58b556d5d2765ef3525700a980ad1014b9319c5640595d765402addefd1acf. 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/QZEQU2108140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x894646c2eb9d063e102400132405fdb0d475463a63214c4982742e2b79c4b983. 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/QZEQU2108139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e5efdd7de56a1f0387ee2755da4eaf2b9d4b635b277e280b87c4bf50ed8d4b1. 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/US7VG2044816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd701cf1c075e6daaa2a317f5fefe1d763c985183ce82ccf7aad30dd456690989. 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/QZ5AB2094914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072d42d05721780da4977f1b00dc2cf7da2d13ab42d1f1717a3586a252f1b35a. 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/US92U1900982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4de1ed737095ff4a00e1d832a4299618a03fcfe19a85c2ec33957b081f4141a3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USHM21975626.
Cheza (feat. Ommy Dimpoz, MC Galaxy & Eddy Kenz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014c92c9cea0709812905375dfd06637458a982964144bf93f66e2276a3fba15. 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/TCADZ1863182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233fd66feacebaa0d175b2ae54c62ae8ccd9181a96da8c7ce4b109e98e0a0ed7. 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/TCADZ1863201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a0e7b38a48bf7c2df8267da1f480c5959633e107e7279c4f1121eaf53af666. 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/TCADZ1863205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5de77c2833a405c517716b80a85f20a33b663c8728e499fbc742040f02eaaa. 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/TCADZ1863208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d44d12aade63769d9aef9d63a1a33f717413c3f53b39201c6a515e48d17a063. 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/TCADZ1863210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeabcfc028e00a493ab50190d4c7816a9589eb40135bf8a4e48ba43f7b69fe395. 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/TCADZ1863222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1199ace5d6589ddd0d8cc8141a33efeb9f7159dd2eb27c7090ca5dc22b289d47. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TCADZ1863236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc71e1ec68e991fc53036e5027e39dca7921ea990ae6b7870c2d0d9aa0554ec9. 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/TCADZ1863239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30f837ce21b1e7d93bb04ba120f66fb623a3d86e4c64bec66ad460d8ec3e55b. 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/TCADZ1863241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf37f4591ac05bb40fcdf2e2f2043ec4393113e61570c9743ed0ba608822f8418. 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/PT5HD2110016.