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 0x6ebdb5109587247123d2ac5f3a2445da9e801fa209af0fd8cb3e9a5e666cd607. 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/7b1ac718-95a1-48d2-a801-b462075b87f4.json and https://artists.proofprofile.net/proofs/artist/7b1ac718-95a1-48d2-a801-b462075b87f4.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 0x06e33418398ff9cb38a4cf3a37bf5d5444be5462f2a88f3dec99701891144f29. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/CH2378300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70cfea8fb8a4a815752c75b1c6385533aa9c0f527df4a6162f522671bb16672. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/CH2378400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0a5ebd27287921c69a09ce06228368b1c66aa44c8f78c611e9a1024770b2d1. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/CH2378500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525962d0d7b1710ab77273dd847cc04f34ab4a3bc560298d1cb5182f69ea7453. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/CH2378500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ef2bdd2ebde61fe48011f616749aae19e1c5a5f3dc1293e833dfc38fb48e81. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/CH2378500018.
The Captain of Her Heart (Karaoke Version)
The Captain of Her Heart (Special Long Version)
The Captain of Her Heart (Radio Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513e8d5652084ff0836a80b8ca5cb424a99555b932ec312cda21bd9b6838eefe. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/CH2378700025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a6708c8863aec7bf1f278876c85dc140b2590b059dcc26b6a94d532dcf58872. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:29:23Z), 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/CH2378700026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x759879c98cf0f270ac35e00e03a2bad4c64ed94a96423b2fcc6c997adefd56c8. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/CH2378700027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x436fb19dfbf0e5aec989c324e5f9699f0ca80a6f73634856557476b9ae9d960d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/CH2378700028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8416adc9c4c767d059cfa9b47fc4a51e1424bf0cbfe55b3dc2807e1f4745cb5b. 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/CH2378700033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77085e27ae9b3f946d54ace99f431c33ebe05fa650cb35c72de31cc7c81f898. 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/QZHN32077313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e36213eaf641d3676cbc6e76dce24567397347666abe8de37e2511a4616fe0. 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/QZHN92087433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ab6f062cd5a20f7dc880b9bfef3d783c14543075e765a2ac3803bb4bd451f2. 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/TWH951700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0369effa95d96183d02554f6ec12dd2201175504f055241cedcfa45e8e285efb. 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/TWH951700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc0a2613d98fdb39317c10c0aa64a95c8fb83d97320a94a0401c3470b057fc3. Chain 2 (Bitcoin): anchored in block 960277 (2026-07-30T16:10:47Z), 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/QZHN92087434.
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 0x3b951f607bcb15e1fe94651648dc9c2d53afe006c0bdadd05a711b0b67515186. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/TWH951700009.