1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x67e362f52236028889d9f15582c593ea2176c174b14a8fc7e62835a21db0841a. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ee8a9da3-5702-416c-97f9-9ed4440ba6e1.json and https://artists.proofprofile.net/proofs/artist/ee8a9da3-5702-416c-97f9-9ed4440ba6e1.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 → block OTSBitcoinBlock must exist at that height 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 0xb618fe9213108465fc363e984b35ee3532ecc13b5f481b7e67a5d15629871eac. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZW9L2303229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c663dda9bfe964e905c6275c480a2e87073521c1fac50495df011c189dcaa0. 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/QZW9L2303230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0217d3ecf6d407bf0fddb90fc24d8df64f2c32c570783ca483b1ca5c6b861e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZW9L2303236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f6dba1b57996df4967110676a79af8ae66167c7e144a6ee1ba80f216c890c4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZW9L2303237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4dbb918d9987bd3f3cbd53b7142528716b29662875cad25cd70b7c55d773751. 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/QZW9L2303238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71402ded1335afd6f498381881b62bf180f54fe9de08d5d3c7152f04599bb31. 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/USL4R1936028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x803a855db79b3d98689fd2adaec7173f6785d41cab6b478a4eac5948e6e073eb. 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/USL4R1936030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3cdfd5f57db247a4798f0ce680c2464544133fbc66f5b1a5cca4f62f730d0c5. 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/USL4R1936037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4913e78ace9197726948bd6fd4ddd54f15a231392558c514015c164f8850408. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USL4R1936038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b413dec9fe5567dd50eb17cab64ce3fe3e8c28055edc58c7e069813308c5dc6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USL4R1936039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7fce6b72409fc985541faa97ec13eb83f8b253b13ed71a0251407d38323687. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USL4R1936040.
FREAK EN LA DISCO (Brujería, Champagne y Porquería): El Mixtape. Volumen I.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4924dadcc5ce6d260c607362893316df5c0f58f715b36e17c951986d179ecab3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ARQIW2215199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe074947b8433b6a8e31641cd7071aed3acc7467b721ffe539a4f7b1ef704c8c1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ARQIW2215201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972634813d076223b80801c38f0e0da34fc7db680a2cd86d15e200adbf3cf3ff. 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/ARQIW2215202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd504f333abb24c39c443df40ded52a53cb528bd0b7fb791446e58877d52c0f73. 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/QZNJW2195299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13591b5cce926ba58b38b03bc94eb2d150ceff368c9d586df441309d75c9a188. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/QZNJW2195304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e6cc95f1d408f0a51d235f9eacdf9ac8144dc9f5988609004435be3420f4aa. 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/QZW9L2420218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a9384c7188a6ce76e0855f095c23e837190b7b7d7493a96befba1cb3ec502f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZW9L2420220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef109a7320bd084c927e0b5da1e5f47485a4540e24de49b74bfc63ebf0975ae. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZW9L2420231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf10425a975c854d924cf6812a919492fdce69f0d270530b6e937065db1e406c. 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/QZW9L2420232.