Pedro Pastor (1894 - death date unknown) was a Cuban professional baseball pitcher in the Negro leagues in the 1920s. Pastor played for the Cuban Stars (West) and the Detroit Stars in . In three reco
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 0x96d980f12b972080955c73ab073eaf1e7a670e07a6f9e22c52c76aa3aec612fb. 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/c856a9bf-ebbe-41bb-8b08-40ce01cf3852.json and https://artists.proofprofile.net/proofs/artist/c856a9bf-ebbe-41bb-8b08-40ce01cf3852.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 0x1f2ca9769c6ccb5ad24998eb2456ba1b78b48375c9cc93f4dc821adcc9bfb6d5. 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/ES71G2228508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38c3404ec00abcb3c9c8e0867849fb0ebb7e00fb105db44669b9c6cd181170c. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/ES71G1414457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f3c203358816c11977a4f988a8cf401719c5f263919895f5e25791ee74dc180. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/ES71G1414464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb103adb394a9a0474dd6830df732c9eb77e494849c14b53ea019265c63704488. 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/ES71G1414465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d99087c73d5c2161b01f471b3f7b72653e4a455bf9b1c094c7f67d81bc9a4c. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:04:39Z), 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/ES71G1414467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b6e68fed7ed2f49cd2128e6f6295b1417e6aeb8df4731b9c2e11f05e1d73c3d. 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/ES71G1635533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f9053068282ff0b0b47a718c3636a2d9b4e3b6e5f9967f903626adbdc5d010. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ES71G1635534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e9305be0e9d96e8c5187c27a9a1e9420557af9cb5cf940508f339ab85c7455f. 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/ES71G1635535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c88e0645d1702a958144af64f61780223e8d20762bc69828987e6cbffe5c6f5. Chain 2 (Bitcoin): anchored in block 958369 (2026-07-17T08:01:55Z), 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/ES71G1635536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73cb2ab1841ff3f7370c583115831d65952b619c2202c9af9418b1fe68bc7364. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:05:17Z), 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/ES71G1635537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c98dac8903f1e2a856014fd1271ff287850e6597ff3ea372b327c537da2be11. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/ES71G1635539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb446a9c90809615d6fd968bb3cbea2612a7bfcf8978d2afdeeac6de3b9845fd. 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/ES71G1705996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x135d599734d1add00e263b0c13eedab23c25804eb6058674f32452bc158afe92. 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/ES71G1707518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12374f2eb5a1f622932f4e23ff4a1e0ff40c343a2406944c2732fb09019c0c0c. 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/ES71G1707519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170f52bf483bb7218bf30433f84133e976e0afbc28f31f0f2a1e01a7cf70821b. 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/ES71G1707521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ebbf60cb8f3bf79ccf8ff2b52235869a48f6c2f01d2993125a4e3c12c9f778d. 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/ES71G1707522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015f7acf49f8471e88364ff24c76978871764f45e7a96274e31b40c1f8a09990. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:32:33Z), 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/ES71G1707523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1bad541dc39ee174772cde2cacae888cc53bb1cef31426c09391bce3c98c648. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:54:12Z), 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/ES71G1707524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f68788aa3f7e10fde91e566177053454fa3118725ac213f98760dda6230c0a6. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/ES71G1707525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a13aaf01df2423fe1db4cf4adce8cbdc0ca159e9e89288727993e87042b230e. 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/ES71G1906569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45df6f1d3a7d23eda7ba9d560a86094313baa2a86c4cff9535ea5b62146d63c1. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/ES71G1909860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ef6c2c2432652ab2d2b313eb6bd590bfffed35de3a0193752e1acf843fb9a2. 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/ES71G1910716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa169d4335c73a822dc65d11801977f442e6f0f1169d6dc353ab57e346a322468. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:24:26Z), 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/ES71G2028489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542d0934ba82f11866a62f4ddc8616d0d020441c749336b58848b028268e5eb8. 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/ES71G2053279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb06b7e871b5779241ddebae2087e51e6d911839428316e0dd53029a1b53f5da. 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/ES71G2123892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a738466e90919d3f386e36ef3300a4817aa1ec94a0266c24c9de9a6fb621f60. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/ES71G2134087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb570ad3235e4f89cbcf81ebb3a07f0058aea7d782ea1b45a46304880e0ffd03a. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/ES71G2140445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ba70ad0b5765da55629e7cee362c1e6d9265a5fc2b86fe74ab7e41e2f04796. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:01:44Z), 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/ES71G2140433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c70a8198f8ec630edf33c0f98349a5ddac2a593234616639b5a23f89ae36c3. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/ES71G2140437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2c241b410da67d56402a899f85196db3a94e818edf4cfdc80cc01bff7f590d. 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/ES71G2140439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f8538c8c39918f3af86340ff60935a31befcf65126dbb8874a2bd7269e347e. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ES71G2140438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda989804e9f969460be41a017b9de1e3de12462066cf8e2c793a171831eb37f4. 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/ES71G2338231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x938e4f1931cf543f55708b4170e0e200c8137b7bf44914896f62b225017acbc8. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:21:31Z), 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/ES71G2401505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7906aecf53a60411fc535bbf5971d5e698ed62a35765f475c1e376cb06e023d. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/ES71G2403601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a929d8d7646e76f523809b87943fc208742cc5fbd223f83e2287194284e6b29. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:54:21Z), 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/ES71G2403603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b1152d6df45adb453f4d62d4043ad36465a81f9dc6cfbae1890cea21ca3c92. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QMDA62502861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932ef6b897c825f179281ca91eb5bf35310a9528e3da5761cae4db542df3b296. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:44:49Z), 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/QMDA72584188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24201286de6eb52fce270056545d1d545999f3a4a1e0e97be51ad3d917fdedcc. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QMBZ92548136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f478798241b569379eb1070184e2ded342aa52e3f0ba66cd80714e56b6411cb. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QM6P42587513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb658d5b2ec54a15c2d02dbe2aadb70366d082300ac26b1b3579fd1af070c0669. 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/QM6N22549042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245aa667cfd10191cb9319048c82b763fce2199b770a2fe2a97aaa7712f555aa. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ES71G2011511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda72c3519cb04febf9bb0e15c0204d8a291ece35f15e1e2e4cb3c9c3d22c5066. 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/ES71G2060451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79456811250b77b14806cc5bcb09aae1c6f388e52424a01e2f3a3b64c6ae5dce. 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/ES71G2015680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad675fb2093d7820bbb2c949e2ee906b3f4ed1206d0b040cfe32a91ee5fcf0d. 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/ES71G2200167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34fff6d6422e1fb2d4d5bf88dda13a3511015b409549b98630ceb2a21e7a8f62. 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/ARIGJ2300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad675fb2093d7820bbb2c949e2ee906b3f4ed1206d0b040cfe32a91ee5fcf0d. 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/ES71G2200167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07698e640f2a153abd7c894e6b9e84f36ce4619db06f546d2e6d04ec08fb5612. 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/GX3Q92358305.
Si Se Calla El Cantor (Juntxs por una #CulturaSegura)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe19a99c565938456b8e5d702366ab6c0e0d641dafaea7ac670c00d45aa8d55f4. 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/ES71G2239309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e644a701f20a9e3f76993b7477b85e0292b58311dee1126a55938c13e4b3cc5. 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/ES71G2337007.
Canto pal que está despierto (feat. Pedro Pastor) - Acústica
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029e7caca9f8a6a5a665cb67deac128002dbf02478242bcde8ada11a60ba829f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ES5151901621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x164b0536f0d49461f3e899c5e3a4e1eb08f194cb152107690c7a2bf074c48ce8. 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/ES71G2010335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4beee171ad0f2cd076fcf6bc1f80a8f8bf36a78f2f51f284db6985dadc1ff226. 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/USHM21948488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47bd92757880c03e647b21faecc877a47a727396a89cf8aaea2fbf152399a9b4. 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/ES7312100002.
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 0xc94df68983a56522b9e0a023169bf35671cfd0908d9fb37d5ceb8dc3440eaf32. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/ES73S2100164.