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 0x6a2fadc2230acea98f5b34c023e101be9361c0d36a0720d72a7d7a410daa2c1b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/330facce-dc16-4148-839f-ae4598c66dfc.json and https://artists.proofprofile.net/proofs/artist/330facce-dc16-4148-839f-ae4598c66dfc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Live - Jair Sandoval & Isak Salazar Remix
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 0x1c64f45038bb8fa4373a452607b0f9fa1c777c8cfae84c19237decfa90fbd45b. 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/BXEPJ2100086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e04664edebe0437b94f25ea9400f62125c4ba2262e43be59b2c708c815d5ba2. 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/BXEPJ1800113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae2c13a3faba71b111aaa8124ddf8e13fb99d6af5843a89ac96fed4030d0e24. 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/BXEPJ2000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5c4f60edc475141c4cd39c5393bf8400a6bbf6316ecfea4832265e187da918. 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/BXEPJ1900074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6554883b344d19eb66aaa9d09dd1c47fda0e02ba07279100d9c82648522f7efa. 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/BXEPJ1800097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e98805698d35301eeb9851ebdf85244486a0e541edcdcfcb0cfc27bdac3b5f9. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/BXEPJ1900070.
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 0xf5d2468f8b6f417d5a269f6b905e8395bac245b881c54b878b675de941050d7a. 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/QZG2X2409769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d6b9593e414f83618dd87801c9d15c625591460d20c257f64489902e35d6597. 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/QZG2X2409770.
Ta Passada - Charlitos Blue, Victor Cabral Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ab6f969c44abed88dd2a7d648670fc22bfe08ae1118163f8e18f9c4791bc73. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/QZG2X2409767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf4fa5264f7b10a96348a6520aa84edb0d70e406eb60f6769de3738556e4882. 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/QZG2X2401142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d8dff19d5320f03e6a0eb872f00c1a38c865d2fd1aea92cfcce4eaa9674b2cb. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T13:56:00Z), 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/QZG2X2401143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8d237e74c0307e308ddc1044b68c93e9d4b2e415fcffe24a274391c171f0324. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/QZG2X2401144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db9e49400b721e6b538507e4f278ea5f863ddfaf15332720e1fc44a61d0fafe. 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/CA5KR2416830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccfa8a427f2d27ff681d3e5a7663e92fec0d6d335cf08342d08095d5f1bb9bd3. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/CA5KR2406297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb3af47c990bb8b0f6d475b0c962eca96579533355377008dc9f723b64c74ab. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/CA5KR2416831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504ccec1e9551e354ff73590be9c037a64b46162f9bfaeb302512395038fdc13. 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/CA5KR2377411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04be823ff8cdbb8e13d8be0a091ea314fb032d2774f8fdac5f131a258eb009ff. 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/CA5KR2377408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2350fa1701c74665fba459cbe2c42e00fa4a35948ebf2ad62da1fc2a9f941855. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/CA5KR2377409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b451059681920f45133ddaaecf7021c7f01fbd3bbb705ab67a50a7d3c622c17. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/CA5KR2377410.
Música Latina - Sam Rodrigues Intro Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca2dead58e5156f246bbf642cd3cf8c9bc02d03a19a1bfeacb3203848012024. 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/BXEPJ2200028.
Música Latina - Sam Rodrigues Akaralhacao Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa125c2358bdacaf825790a42754fa1ae7a572f67ec2742ce0f957051006c2c71. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/BXEPJ2200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8b285939e61801a88cbd1eada3032169ac9578f2bf61fd9d9921ae48ab39fb. 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/QZHZ62256015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5891c6b4894e8b2fd0159269a82d42efdff856ea84001f5e7a6ab5eb7f865c32. 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/BXEPJ2200008.
Confusa - Jair Sandoval & Isak Salazar Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8345e3d9195c20180fdff916d8eb89eda7a71e1d333a491734ce2d8a9c38291. 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/BXEPJ2200001.
Confusa - Alberto Ponzo & Fabio Marx Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ec9ecf3d03e09a1f62efc85b353bdbe30fe35f32f32c8b9128dc79db88244b. 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/BXEPJ2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa03ed3351e5ab78b9ae1f3fbf75196e2120d10f21c9d897d18c4c13277746e42. 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/BXEPJ2000276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3125b5f03353cb5301a5ccd14916289dc843664d33e547d09a36aed0beaafb33. 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/BXEPJ2000272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6dad19056483793f8730880de619e7f4c6b4ce6b7c3d251715ab4d254f7b8a. 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/BXEPJ1800099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7db750c515cae92b07225993f3411a78dcb75c728641278b3d2422a17c872a. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/BXEPJ1800098.