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 0x1d53ae981853d3584c6eef6040c245355ff951ff1f1e53164f66c8d43ddf4462. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6d6262c7-e48a-4ddf-af10-921f365d1002.json and https://artists.proofprofile.net/proofs/artist/6d6262c7-e48a-4ddf-af10-921f365d1002.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 0xd0070f7fb6903587451788f62bccda75c66664848fe5a3493a82714018566ff2. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/ARY6M1900008.
La Jaula Se Ha Vuelto Pájaro y Se Ha Volado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded0b36591d70eb66ae83215ea4dd450bb11dd4c8972becb2ce6fb7f12d444ee. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USA2B2202424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41bfb10d492f559604a02df70f4068dcd22b52684fc634505d4c3bb52378009d. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/USA2B2202425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94062f4c07501097dcde9bbe37281e8ef309e11dd015c06daf2bdcefd41b7b2. 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/USA2B2202426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9add92c8505ba858496d24963ad14cb2e782b6325bf5f51a00c0af84297f0609. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USA2B2202427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9cfabbec3e2533659ba81c4066bca9c215a5e36f6a5222b2b5abaf9999e08d9. 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/USA2B2202428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a5e666500c6c141b1077a6ce7f5130f3021ee4ec18c25b80d96290823f13c0f. 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/USA2B2202429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473efda57572da37ba14a36d79672abea89edf07aeb0dae65189e0d9ed219439. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USA2B2202430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ebd7fc4f4d77bee5a00ed6be44044199416a5ebc8d946879127f9a8e2ffbb8. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USA2B2202431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd71ba09b2ce2f4c40816d345ee312d2812ac7dde0043289c0b2a2d85ece4a726. 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/ARCH22400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827a9db9f39865302df19e2a32de78b6931a39b9e4b836d7679eb09d4b237bf7. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/ARCH22400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a73bc80e5b25ef121f64a1d61d935f5f57ba12ef6cb70589d4f5ef456b4750. 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/ARCH22400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd937e73529aaa6c205cfb2f72657516b49e71e30bad37fb47c10cd3ff1866d1e. 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/ARCH22400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59227e34a1cd3cd71f1d8104c406b3eb6ffef35080fce8974e5a0fa2c7d3444. 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/ARCH22400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579fff2aa8d6b03d9fb351fc6270b7e2c494aafd92e7a1aba9b0aefdf92724cb. 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/ARCH22400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1add1759ac7bb238b8cb62a2dae32c60b76bafaf9d76c40120049f9099e35f9a. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/ARCH22400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd092153128019666848d4c5138f0334466cbae2bb4303496dcc02e0cb15c8dbb. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/ARCH22400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac579c41aa1669306d7a7c29225e4ed823ee3c89be96f0e81255e65511941c5. 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/ARCH22400038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a86fd9bd77a5ba2b64a5bc78fe8b3f730a0acb212800db96a925e244c3c7a4. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/ARCH22400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a68bb4ce2b72ebe148ede05eb799f3e7039d7daf931e46321b9aafd67fae7f. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/QMRAT2400185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41518c4c036266e0eb9954e28b10d613b75c5d8d39bdbe4449e87ac5f7e57eeb. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/QMRAT2400186.
A Veces, La Luz de Lo Que Existe Resplandece Solamente a la Distancia (feat. Ingrid Feniger, Guido Kohn, Nacho Szulga, Axel Filip & Omar Menendez)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5874d2126f6bab3682114c8311435602805d0a156d84471c52d0e7bd5401bf. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USL4Q2011609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cfcb36066928423c8bec50969228b05d6c5fd07927d1eebe526ded0b75cd003. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/USCGJ2208567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb42b473565aec7619e3be10893db7777f98d9f1a7ef1dc07b7f8cafdb51dbdca. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/USCGJ2208568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc55e5ea0d78e3667cde6d5aeae793492a18280a9ec6852fec63c24a6bd424a8. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/BXF9K2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63dd2df560af25fe1511b6ab026bfdc7561a111660da576622dad64d7aaf5326. 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/USHM82104162.
La Jaula Se Ha Vuelto Pájaro y Se Ha Volado (En Vivo)