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 0xd0ba9eba4eea1736fa2fedd819f38c0032fd1a6e86a2509e4ee08014801b066a. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e86535a6-3918-4e0e-a923-0177e0c024a4.json and https://artists.proofprofile.net/proofs/artist/e86535a6-3918-4e0e-a923-0177e0c024a4.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 0x45a8fb6622ba2d1c4b86573d982cfa5bcd37fcf818318ca3a53304e0e9520d7e. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:21:17Z), 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/ES5021701943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6483e28b067f572992007cf8ddfef53d3faf5c7b8a54dc27d80adef96595cb21. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T02:25:05Z), 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/ES5021701944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ed2a882eef4b98aa76921730a3d55ebbf3ffe16d0db8fcd90dae689dabdd64. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/ES5021702402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed81b6b8a10e2f1e2fafd49fd9735d34dff37eaf0aa74a429c11ddb2b9b9b9c. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/ES71G2055105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b68f4864943fbaeb6707b0846eab84b1d6c9406e2700810991c9c932da66cf4. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T00:58:27Z), 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/TCAGQ2246648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa965e4224b99ea5e2520a0d94b5870afd5f99b8bc78fdd553de5fec013c85eb7. 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/TCAGS2220038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b4d091bbdf4c421ff6a080f85b1cba74f2ff35563f9f33754f9b985a6043b3. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/ES94B2300066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe73512eed469897892cdea67db05ab761aa1d253844fe929dbd14cc57489514. 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/ES94B2300082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x367ed877190fe8ebdd94a9d69116ff8b442855800195932e3f57cab72d61d224. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T00:39:30Z), 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/ES94B2300114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x715b42a8d3208540ed73f190c0e5dc2060f02d7255dd68d4673d3a4fd1146aac. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/ES94B2300124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6cf71fd186bdd49fc7356c0a3e53bf50ed2c0bc88fcb330179873377419e49. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/ES94W2400103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2b9e4465b9a57e6272d3c695d6010c81e6aec341d2400d3b43aef0be97ae1c. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:23:54Z), 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/ES94B2500039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a8c9006d08859466ae1709c1d1c8352ff193bbe9ad557ae3984ec1a993a426. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/ES94B2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a44980e0a99a940488a6d11e62fdb7d5486bfe61f46ae542448a460c24a6ce0. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/ES94B2500040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfff1e6a4c69151da0220d8cca7cfa30a44f2e260a84362631a79888a7cc79e2. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/ES94B2500041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7d8b388f91e323256c429273f85e2e3f39073cba5a1c2782e889df7fb8e1cb. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/ES94B2500042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2cf7594e2a8177c16e29e210693e6901275e486fb39c8cb025df3d30220b6b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ES94B2500043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c2d207daa0720cf0ed42cb898f9be88ba0bd902ad791929f061ab1f6b8c155. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ES94B2500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12513e025c442dc1e3ab51e8a7199ba5ba679e46e9225856776a953d3b551c16. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/ES94B2400062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2212d59ee77c6a358a946d07cda3abfd0eee5b51ba19122f03e354e96194eaec. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/ES94B2500044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a64809563a1760a7bcaf6b51be3d81032b88ea8bfdf55c9f6fe8ac8841911b. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/ES94B2400049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b010c7269254d858df0890ecd1b665676e9716b3ba0dab4cdd1278d8f3f5dd1. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/ES94B2500045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfff1e6a4c69151da0220d8cca7cfa30a44f2e260a84362631a79888a7cc79e2. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/ES94B2500041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68abebdb936fead34ec6f7021ee7664aea32437ed987bf3f8ba35bb6c405605d. 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/ES16E2100379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5614bb01aba6d61f8b9203f9bb7b76dd1b6336e7fac07892cf0512e090474725. 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/ES5152100730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5614bb01aba6d61f8b9203f9bb7b76dd1b6336e7fac07892cf0512e090474725. 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/ES5152100730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe918adb857135f2c38642388eed84c6a50dc5c0819c21ec69fc140bb2d23493b. 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/UKXN22244269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce9e5bfbfbd6fcfeac52493208fc9ef03eaf59aea30b050cf736bb558744fd5. 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/GX3Q92046251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce9e5bfbfbd6fcfeac52493208fc9ef03eaf59aea30b050cf736bb558744fd5. 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/GX3Q92046251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf97ec9a64c96d02835ea8ec3734dea37b7cd46431cb9fca510e719064e2f0e6f. 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/ES71G2005483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a8fb6622ba2d1c4b86573d982cfa5bcd37fcf818318ca3a53304e0e9520d7e. 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/ES5021701943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d7b717a731f28150056035acbba6bec874dd2b4be8fd3eeab605a5374c9b56. 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/ES5152300208.
Qué Bien que te Vi (feat. Carlos Ares) - En Directo en Apolo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55cd514f22952bfaa8a235270e4f7c259bcef5199eec696441604d0449c6594. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/ES5152200128.
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