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 0x70f58cfde045882f5c959cfa5b0861c0f544162d929de03c8f3bdf59415f1554. 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/ffb390f2-a3c9-4d8b-9f9a-7cb9942a99fe.json and https://artists.proofprofile.net/proofs/artist/ffb390f2-a3c9-4d8b-9f9a-7cb9942a99fe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Como Las Clases De Twerk (Saxofón Tribal)
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 0x4ac4aab1dc2f84371d76381009a17c859e7e032522ddd0733f3d63f50aca45d0. 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/CA5KR2117347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f9519ed3f22f5d1feb156cb5efe2725d3ce99e0ac8ce5b609c7fa5b4cbfefe. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/CA5KR2146050.
La Mamá De La Mamá Del Sax - Saxo Tribal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x077f03b397d5028a587e1b907960a856383b4301bc3e943fdd699455b812a091. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:06:22Z), 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/CA5KR2184203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b1696675c56da8babbb809c10617a6737ccea57e29967ceb05126317383bad5. 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/CA5KR2146061.
Marina a Ti Te Gusta El Tequila - A Mi Me Encanta
Marina A Ti Te Gusta El Tequila (A Mi Me Encanta)
Marina A Ti Te Gusta El Tequila - A Mi Me Encanta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8073901de86cf3805de5bfbaf43b7ba743d6110ae45265c4d0d7f1fc51c4628d. 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/CA5KR0011520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7abb61ef3c112b8de8b1f43d33023494ca7c5a3ab3ce192e112e9a1f0cec778d. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:46:12Z), 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/CA5KR0041828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a681f98182e05cef63be0993d13b6e65e9c78e8af784b0b5b1e71a479ec18c. 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/CA5KR2267306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9461651c8f710bf421e5d159a125fc5778bccbfe31e4c0abdbab69660d8fd7. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/CA5KR2324965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812690b19e96a9b93a4bf3b9d534b693fed5e22942f916800c4671118ebe7f17. 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/CA5KR2325462.
El Juego Del Calamar (Jugaremos Muévete Luz Verde)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x995fbf50c42ea219ce01939b992dd7d8bcde0e086bf441337f74decc614f218e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/CA5KR2422639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ddf42881164495a1ab107c167f7a2935dfa63732e0bacfeae51a61b6d9068ab. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/CA5KR2424719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x545142b6d39a439654c76ff974f59f7e75cc1ee5b9cf94db55a2af1a025a8884. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-17T00:12:41Z), 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/CA5KR2425586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462e88a46baf67af03f284ec8bb1e0e0386a969aeb8072faa04dfb7675e7bbee. 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/QZES82010611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b4586501dc720326a689e5e9a81571770ec472c241bd1bdde605b73fa663b9. 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/CA5KR2425694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89795c9a67b1d91fabf25ad30a8a90c3c00c4f006137b2191d595c5ae5574d5. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/CA5KR2489787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b2526614d43a217db493eaf4e11e429d5cb3ee4a1d4b60fea3d59b015ff595. 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/QZG2X2400046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833b2b982d808fe715094e751c6b72aa064353ac6bbba7ff72b5eae86985ca47. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZG2X2402742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcae2246f7fcc90fc78009b24d4f9a5e7b1fde344d1ac37317640ca50426176d. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZES82087618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8131523196c50832be2f37cd3e0cc6afc3702d2126f99ac2b12c678f8e159f. 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/QZG2X2419749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf852ec124067aba82812edbe7d6af2363b29376a8fdd5215e8a9a9a5bd82e938. 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/QZG2X2502902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a296e8f59282b6448ad670e5e08e3bad69310b3aa0a3cec42e34eb410813a03. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZZ8B2426526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe465ff3ca9deffb294a91592b1850d9fd827cd054ed949f4c29e6e43476a291d. 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/QZZ8A2416760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313537164ff9e372510698921e1fb43c06950523e1d199e2b397e48b08d15b46. 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/TCAJQ2502915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d92b1940dd1b6298f9167e410feb13f638130c1519bfc8e07fea417027e594. 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/QZZ8A2429014.
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