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 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 0x36c98a33349fd0e021d4cc42d67b4365b7ec674390258590a12158d7987008cf. 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/3df2b199-95bd-4f82-bff9-a92013d97661.json and https://artists.proofprofile.net/proofs/artist/3df2b199-95bd-4f82-bff9-a92013d97661.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 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 0x880b72ac8aa619b3020566ef77a541c5e53231de084d4163f8b551e0fdeceeb1. 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/ARG991042433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3542fe21d73f91c8bccad482f441a9abc5679b2863310f88b1193d74b6c259. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/ARG991024709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a828c7c68c4e0d8da5f0471200085ab4c1d61ac8f1eb0fcd339b2d74c7c5fd. 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/ARG991024710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec25f1d4b94b6f805efc5cc81080dc231e7379d126099293ded642dbe2fb08e. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:48:56Z), 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/ARG991024711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x319f807e2a473d85b51e71f549a509bc653a13466e9cd48bf279418ed4e3161c. 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/ARG991024712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd3b232d502c9db9e996479313ca094ca95fa0be0e01bc5c774fe58d557b726. 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/ARG991022618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5155450caaaceaf9dd13d545adb6123856556b7bcaf9e55df99bfb3555cfa17. 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/ARG991022622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3fa254fc323db726c9d22042d2ae0130e439dc97e68d3d46b70fa9352a7acb3. 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/ARG991022597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e213da8bb54feb3b677964573b34c752356b38911e260add2099a67f88ccc8d. 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/ARG991022605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb8a71b0005f0172b615a32b6b9b35beab8777024dda4eda8f2fd8d28e23671. 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/ARG991022610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75cb69c37086e93032f38f42336bb9671bfab9bdd65d4d3efcd04f5802d55c80. 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/ARG991022611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230e0a3a4fbc2007082e676d6fc6b7c89744cf792dd2bca31fba6917cf433abc. 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/ARG991022583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe4d4c58b1f7bc3e704691c43e1da6f2eb186e2aefff2fa6d7f2da0be5b9b2c. 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/ARG991022584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468b80834842c0df9065930123e5ae0dbd1cc5042c700587e058edcb1f4d969e. 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/ARG991022585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab12896ebc0072bcbbb833c8522ebd568ccca48591762b3634ce53891d9c3ba. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ARG991022587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa320ca4a86595c2df12c472b42527f278e9564d2a783960e21ac0a8ca60beb0c. 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/ARG991022588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06fd99681a3a46f325fd2b15012652390deed0bcf9c27c7a55201eebddf77098. 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/ARG991022589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab7e12bcf626f592bce1110fedcce1eb75b8421f18804f7c839264bb49c7fb7. 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/ARG991022569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5336425b5e713ec3cd9906aea93aba2f68cf50d67c880d479bc76e3644af54. 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/ARG991022575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27ba0776b3e57d5047493f1dac00ea0ce9b3f9b4b805bdaadda6a95a887a1cc. 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/ARG991022577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ef2f534d496beef06143b4b0546027c1b8cba9a9262f83834ddca6d7f23f56. 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/ARG991043222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f1e2fced9749cd2483da49a6dc7e9f7d80a94dd1db12cd1bcea36706485ad9. 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/ARG991041889.
Session #2: Una seca por vos /Sentado en la esquina / Ahora estoy solo / Te olvidaré
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf87ed03ee8b80866844add9fbdabf1b3cb75966b1e11d8891273308c66aa1f55. 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/ARG991039910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef898d99e0fd77597565052af00e7cd1f7829178c7af0d46398ea702cee0f6ee. 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/ARG991039893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ac8f64e68874d36a1d9cdc8aa5d304f47f977ad519e078932c5b1efb26368b. 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/ARG991039894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d42c6c7f5c425db4f196bc293f3d57ca1afd710394d763a71f1de07e95ebc68. 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/ARG991039895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc400e43f9604094432f68e08a5abd7c365239b212375f7477d7ea5717bfebaf. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/ARG991033733.
Ahora Que Te Vas / El Mismo Aire / a Puro Dolor (En Vivo)
Ahora Que Te Vas / El Mismo Aire / a Puro Dolor - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1339b1d22f14b055fb78169dc9ab77976fea17aa27556c8c0d07ee8591fa5def. 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/ARG991032833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b7df8c142b72d9796df123a3955ba5f4152c896fc7eb8cad91c03b64b3c58f. 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/ARG991031442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27180f66eca0cb8f3c745d031933c5d76c4438ee804d9def46bb8ff429ad3ff2. 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/ARG991031441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b3038775fb73b146e22494d17cdd45f6342495dc59e24752bc60da25372766. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T18:09:31Z), 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/ARG991031393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5e13b9c492de863a52ec34c6a7c42cd84b942d00f568f669c48c0a161cc98a. 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/ARG991031392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53428091161732a7197c25c8c4a72dd03bf8ab2c7d62656542adef62bdfaf39c. 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/ARG991031326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de57f756e9f8ca694aa091a810856abdd16f274e3bc8760676a6e6bd315cd0f. 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/ARG991031292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2039ccaff155582fc902aae4f0f8ffa7f6970270e9375368ace11ce7f1c8e2a2. 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/ARG991031195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c44efdbdb9fd8cb5062ffc0b560613aec23dcf313450aea42e7d814d65cb3c6. 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/ARG991031194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad0d9a55b988d95247df7fe3eba64b04add35d0408b752aaf8cfdb3ce94f27c. 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/ARG991029605.