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 0x2bc727aad29ce6a193ee6023cd26f347430da4d23f3e44ec5e761d041065f32c. 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/de3502a3-630b-4a81-aa2f-21826f545413.json and https://artists.proofprofile.net/proofs/artist/de3502a3-630b-4a81-aa2f-21826f545413.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 0x3f10083fc553c3bf5d07cf130ba831ce6fcb4f3fc0701a44a0d7c95f133c4090. 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/TCADA1771058.
Tu Favorito (feat. Yomo, Juanka & Anonimus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dd016b6d9eace6a281adce1cb55c4dc08d587de1a502162ca08b13ceacaad01. 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/TCACJ1580604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd65ddb6b42774f2e90254ef81c804ebd7d187aeb156b182b9a1fd434caf85d7c. 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/TCACJ1514465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ffe67531d4d47c1898188bc89e9e1e08d43e147ccf43f83d1c97d005c0ee86. 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/QZMBZ2200064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x032107dd13976101d2ffada3d689989e6552919014f304ec2d6fc18b97120d9e. 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/QZMBZ2300099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x171985f57b8d8351d5b17fca57a10efc579dc030094a42fb783d56861cf833bf. 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/QZMBZ2200072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001250b9e08711128d0cf506b4303e4d3506e2bb585f5bb0c990477f854a2439. 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/TCADN1885960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9147ebe51a0a60934ac43da6c905720c77b8710d289466628792d234445675a1. 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/GXBNP2421325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x075cfcc06783e33253de672a80039303159bda59eb647134df43801c34ef6d2b. 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/QZ8LZ1700046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4488f6a09c2202d9860fc0847dc64ba5b12132966df43cfd918f90a1ceb42974. 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/TCADO1841538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x737769f3550a447db11c5b3737c45b5a899ceca1a4b8ed7aa95dcef28b930ae8. 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/QZ8LZ1700041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97523269c9a737cb51d2134ad3bd5f128a132a74dbb6414b9af0232a1a0e6bad. 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/TCACR1622326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177176f6b66eafe2160908b73b5508fae26980962afb1fc39629a9a6ac69a5d2. 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/QZ38K1600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6abe3931c01d72919ca99d7dacabf8ed53fc7729fdf59f0b56afa74e889c0fa. 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/TCACL1683683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec72ee4d42ef5f5771fe4227b6b5f15c12611efdb2334d6b05412e056f760c1. 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/TCACL1609036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35368855007ab02b93a820490a998992774f025b7e4bbdc6dde9a74ac0ed75a. 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/QZMBZ2200060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2763aa384601e0266b22946d516ff00c17078b6b93038838c8d6d253a3cd04. 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/QZMBZ2200057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0efe43c8808706922d6ee30adf5ba8c49b5ff111381ae2b36cf86737b037da1e. 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/TCACJ1503518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8fcfcf1c08dc0e2341f98059b09c2d19edfb0d74b1c91dc149f1cf6c9e3db59. 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/TCACI1598543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d35ad35dbc9f743482f4f5d915603d228b05705637598184a31a61db4b1a8c. 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/TCACJ1521970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae96e00660495327b80daff9bc0cedaea2a7b318c06731846a207b03450bea9. 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/TCACI1598544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97523269c9a737cb51d2134ad3bd5f128a132a74dbb6414b9af0232a1a0e6bad. 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/TCACR1622326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe964cd770cae0414014bb3629acbb2fe9b102e6e7370526b6fb213ab47f3e1b8. 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/TCACJ1504657.
La Paso Cabrón (feat. Gigolo y La Exce, Falsetto y Sammy, Mike Duran & Baby Angel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a786ac698de84a90a9da213440ca17699d0ae9edc65c891f55d273f1540c5eb. 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/USSD11600238.