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 0xdc516bfa739df1fea0e2213fa753791173aa8a413d02fd73626424f561e2ec14. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6113a9fe-3adf-4c9a-a2a3-cc252703229e.json and https://artists.proofprofile.net/proofs/artist/6113a9fe-3adf-4c9a-a2a3-cc252703229e.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0xe1ba5a269f12dea181a443d523fcc8ca3a6486240ce1f15a7f97713bafafb498. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEQ2502253 — a six-check JSON result.
Dormir contigo es como soñar estando en el paraíso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e183c063286574b7f6578e67b4e8eda507175a2ea42a391a4c81c40a36e2236. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEP2599731 — a six-check JSON result.
Mi Corazón Estaba Herido Pero Nunca Vencido
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e4e0484531a7f67f30a046f5973c4052470ced5eac802247fbc4dff384f426. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP52521155 — a six-check JSON result.
Mi Abuela Murió Sin Verme Lograrlo, Pero Lo Logré
Mi Mayor Error Se Convirtió En Mi Mejor Maestro
Mi Historia Está Escrita En Cada Nota Que Suena
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64670be295f788b0a3a354c8839b128e04c846b88dae495b323847058fc873c3. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP52521138 — a six-check JSON result.
Me Dijeron Que No Podía Y Hoy Me Escuchan Cantar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f73dd7fd860567c74f63ef566e016c1d80e11df79e9c43db64bf28b527e5e2. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP52521163 — a six-check JSON result.
Me Dijo Adiós Sin Saber Que Era Para Siempre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe3a6c9075d6718dd7646babb7919f410a033172661ce6e251d9841447529eb2. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP52521162 — a six-check JSON result.
Mi Historia Es Oscura Pero Llena De Luz Por Dentro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474cedc0bff62ef8d1804aa4d16e7d9559590032435004772d4114dec3407a55. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP52521140 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec0239fea20494143c133f7c4bcd81c9710ed3a297348a135d450f6b9fad013. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP52521135 — a six-check JSON result.
Mi Corazón Estaba Roto Y Ella Cantó Para Sanarme
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9157833bde6c21316513cbc93cd85b5c76ec52eef548a58513a7ef40973e022d. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP52521154 — a six-check JSON result.
Mi Historia Cambió Cuando Decidí Perdonar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49fb7adc5ae530d60c392d421c24b5a897b84f97d092109287005d7a65908dd. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP52521148 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d2375a508cfe4ff7562754b4f2d35ca72867dcc271775974309eb704353872. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T01:09:53Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAT2515491 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ba21d02131b9e71bd565ac36f995f09c1d0ce0ee179ac872acb704705ab234. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAT2515531 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54984e0f20152d18d9c8988e661d23750735e69786e7de0fb865c3bcf1c3220d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAT2515512 — a six-check JSON result.
Su Canción Me Encontró Cuando Nadie Más Lo Hizo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db6dc805b94d64e5d8a78075dbc1bc28b14cd65a830d2993e5084fb6136a7bb. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAT2513207 — a six-check JSON result.
Todo lo malo fue solo el comienzo de lo bueno
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaabb4f7faa2d5547c6d25657725a542784400e8683e92c273f10ae91f57b37c1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAT2598945 — a six-check JSON result.
Un Extraño Me Dijo Algo Que Me Cambió La Vida
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8354c4ef4d905aed4e6ea52f9e992a35844b7239b3ffec7bdc34ff389e2971d2. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAT2598970 — a six-check JSON result.