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 0x11b192c64445ed84e2a9d90c56f1e648733bdc8a993993e9791d62578ff97df1. 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/1e0502cf-5799-492b-a7a0-bdd5ea37e380.json and https://artists.proofprofile.net/proofs/artist/1e0502cf-5799-492b-a7a0-bdd5ea37e380.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 0x612f2ae56c9b1627915c42cca72f4a4e1700068377309dff58a2466b65ef41e2. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZDQH1907913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13834f9b0afb4184c677f5b7ac1cf13ea036694afb4cac9ed142deeccc204a27. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZDQH2154330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8201f2017b8c99cb2c408e1bc6462ec7880ae7badca2f50c97815e70f3c7bfe4. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/MXD481702810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7698eae62b6cd31cd2bb39acc4dbb00ac1802732554ada13c87d645d828204b. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZNJW2391529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9251bc20bb9dd79239d0705a7065cdc47c20e085839370b78e88462c1116f2. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZDQH2392073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x532d08bb7c83dfa05eb7a45f20ac6f0c21022058d1654f99b7343c701e817bb8. Chain 2 (Bitcoin): anchored in block 956485 (2026-07-03T10:53:04Z), 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/QZDQH2392074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59cbd5d087fb7668d4fd91bee1febcebc4c0f246db27dddbb0414dbf5b8f214. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZDQH2392076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f37f74475e46bf03f172a716207d5c387481ea3515a89d80b1a1b6f9df21aaa. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:37:05Z), 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/QZDQH2392080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc8cc656642575a5d87902482853a3f45b77a5b428a8221610cfc5c186e6b0be. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZDQH2396034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308c919da7b5e10a302789f1a702cc9a5db8ec603ab240d17968af186058e706. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZDQH2396036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8a8cd14934011870c54d8dd16a2801d7f9af946a5c5389c50f0a0b280c9f55. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:19:25Z), 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/QZDQH2396037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b27dfa316d04fde883de35ec2822af31fb65b2e7fa89d440d4217d4e04a63c6. 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/QZDQH2396041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa287d271d17a1a354c41aab758a2ab7a881bfef988d930001bd35934274d3a02. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZDQH2396042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4692f5742ed0b1526d8a1faa68ca1fdae4fc8c47e482499a842ba68322b3d711. 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/QZDQH2396044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a9da8270e8be547b13292597d9e26ee57e19d538ef524e5030eeb2aa62578a. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZDQH2396045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d11ca2ff4f69a0ddf4bcbef39dcb129442a5bd9b02407db80a71c2dc1b98cd. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZDQH2394845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa4d0fee7833a258906da21793b38a3a419ad480503537d2c31bde5c0439a02. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:34:09Z), 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/QZDQH2411904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab4aebeba273b2178573bc065e06f1397dfa261ab8c0da79432e26fdb698f0b8. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QZDQH2411922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4078354c3282966b1d3f71df31f9879c738ffbad1f782fa95b76d939f84264. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZDQH2411925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe749b5e3444ca5e9ae98b3f8bdb67fa134ca46d14584154d80f94917223d10f8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZDQH2412174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3dd29cc4675cba1c853a20bb7ba48273f8a770f4a7e323919958c2b4d83686b. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZDQH2427486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9297e322359ca069c93c1e4365d1f63eefc5bcc91d9bef0345f4afecf0a28b51. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/QZDQH2427490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f80ec1df50a0826ccdd9397fdea15c398dfd63eaeb4717702c0b4a918ed915b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZDQH2427496.
15 Años De Historia Y Que Siga La Fiesta (En vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd89691682bd39c82b604356f6fb1342038e29b6487779e9e568da29b4666a208. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T23:02:17Z), 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/QZDQH2514348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf05a0c2fa4f62fd0a0899fe5a10014a0af5b2d28efccbc2b9333cd166cc9a9. 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/QZDQH2514349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196c4902569f4e09f9139bce7607dae4f5fb3b8ce3cf90d2a60f6ef69502119f. 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/QZDQH2514350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f4a9b21bb54acd6266f5fff459a9ec19d7c11f0948949123aaf0952baf7e3e6. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZDQH2514351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2f40b188329b936f0f799b18f70f61d71e0ea2f875717a2e16a74c64e4ce73. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZDQH2514352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d59f1ed1589aa03ef02854ae2d4e4a6e6f3edb0db7c173c71a7035fb54b0ac. 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/QZDQH2514353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f54342369e0f4ae8dd3904c093dadfe77a7dc53a7a7278e3bfa9ced3994684. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZDQH2514354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ee835065c2ed617a3de46358ed7289efa7240a84c04ca51916147bbd07abc4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZDQH2514355.
Por Que Le Gusta Bailar Cumbia - En vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6974585b479aaaf5b650b38a21b3524657ff1724cfc865428f841901fabb42b. 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/QZDQH2514357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb4d73026ae3889f3ed0269235760137e60a4ed3140db6e915a0bd6b36d5835. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZDQH2514359.
El Guiro De Macorina, Subete A La Hamaca - En vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6164fc826b945fc229854a933c313be2721b89d1e2b50133aa6ea1b67b9b86. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZDQH2514360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f841eea286990e77c40410bfeb254ea1e7b34cfb87437d9a107625d3c7ef83. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZTPX2509327.
Te Vas, Arboles de la Barranca y Hasta la Miel Amarga
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0a01b33aeee81da42ef005f709a37fc5dc86d5157b3b0d387ef7071101f47e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZTPX2509329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a6d92c580edc80e294de061347079c89c7917c5bd0da0d9bc15d1ab9f1743fc. 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/QZDQH2540667.