A taco (, , ) is a traditional Mexican dish consisting of a small hand-sized corn- or wheat-based tortilla topped with a filling. The tortilla is then folded around the filling and eaten by hand. A ta
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f7ef759830160ab7ee681d93f077feca09e254c089c4a1c52ed6761e3add79. 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/7ed61010-9ce0-45f7-abf1-a1d6ead9dde8.json and https://artists.proofprofile.net/proofs/artist/7ed61010-9ce0-45f7-abf1-a1d6ead9dde8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Träume brauchen Zeit (Live at Eurovision Pre-Selection)
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec418bb061e8b549d9589caa0e649f11196e1e7ec9b1a1dd476a9a05bc12263. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEK898200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087229e4e9891dae14903a54f5b486598e9bab2a5c47c8bcdd9845d4f2cabeff. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEK898200230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x216e955bb68fc5cf3b9a1d54e1a87916da146a1720e0c070280be9de1dd9cf3f. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/DEK898200240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaaf3c8875a90a6a6c9fc0d3cee4c4ffda5b2119e87f6dbec60586ebb06dbad8. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DEK898200250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaeb84d2b0b0b1569e958d21c15429c0b902d6bb5aed6d220e14a816fe941546. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEK898200050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e5488ac48e1019faf0d9fbc06f32b48ae184bf1c0a3d303463f8080abc2090. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/DEK898200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12de2e5274f58ad7b64b31f7b2919a6bed50ebf35ee6aa3d5395e1ea3122bf7. Chain 2 (Bitcoin): anchored in block 957579 (2026-07-11T14:35:38Z), 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/DEK898200080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06b9ae2cfe2714cd0a1abc4a877268cac9cb96e17932aa233cd6076b76ddf5c9. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEK898200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb587ae675da2a45fe01670adb945cc71a02aec088176fc089eb605c4f595fc. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/DEK898400040.
Swing Classics: In the Mood of Glenn Miller
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18db26800454ebd9fe29cb424975455ca11f0de84cb8fceec9424621d45fd4b3. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T22:07:54Z), 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/ATW480500019.
Puttin' On The Ritz (Re-Recorded / Remastered)
Puttin' on the Ritz 2017 - Supa Dupa Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f2cfb273cc9befd62601faa76d8e802b9c8ca81e56b30a4809de0da1e5be8f. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:55:05Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DENA51602702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf0da7d405cd88c0550b723dc1bfff0197f6a9cb53f93a6103868a4c76e2f50e. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEEG21995062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ac5cb76f0d4737430b40c58422fd44b48be0c3898251359d273b8f1fbb881f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEG22199893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c6b9d02975f632b48e402ee830d2203615ed55ca65a772d634c2e55fa983fa7. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEG22199898.
Gold - Rarities, Vol. 1 (Remastered 2022)
Puttin' On The Ritz (40th Anniversary Edtion)
Livin' in My Dreamworld (Bob Parr Remix)
Puttin' on the Ritz (Re-Recorded - Sped Up)
Puttin on the Ritz - Re-Recorded - Sped Up
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04cbd04aabe89deb32a913221467239b71fd17f3dda37c4ca2c15773fab8bfc3. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:43:14Z), 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/QM6XS2300338.
Taco's Charleston (Tony Catania 2023 Version)
Let's Face The Music (And Dance) [Bob Parr 2023 Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1395be0abd9f200a1cde31624a7df6fe6c10283016064f561a5ca15f5e4cd5. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEG22481328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad02be6e213387f4dc21cbbc7d43d5d59fcc65943d568d1978883720ec39585. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/DEEG22483591.
Puttin' On The Ritz (Dave Audé Extended Remix)
101 '80s Hits - New Wave, Old School Hip Hop, Hair Metal, Pop & Rock
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4dbc0e8f70b524648cdabea574792172f369956c2da69950f68489510f66ca. 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/USA371121891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf66e4768d1ef4084f1ec051f496d98dab25a26ac3e8a006a20685b11faab290. 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/QM7281456087.
New Years New Wave Party 2011 - 1984 Revisited
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fd500a71af8438a7d577b796a376c84e10f52b1b47e37157d29807e0dd39797. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USA371141201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d4ea6e41564d0342363cedebe3f832244b16de5581256dba8ee1df3f9ca27af. 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/USA371414504.
Trashwang (feat. Na-Kel Smith, Jasper Dolphin, Lucas, L-Boy, Taco, Left Brain & Lee Spielman)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8e0ceed0b3b2b4f1558aecee5d488f270c5d0bda6cf0b7a054bd8d27f9aad2. 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/USQX91300232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb799baa3d5669fa72d039f26270d82e2efddec3baa388dce868b104d55c15acf. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USV351375410.
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
Puttin' on the Ritz (Re-Recorded) [Remastered]
Where Are They Now? Hits of the 80s & 90s
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993a111c365f45a072ee8042b7eaefd6e3ff662eef1839425c1c2945cf702c82. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/USA371682513.
Puttin’ On The Ritz (Re-Recorded / Remastered)
Top Hits of '80s Pop (Re-Recorded / Remastered Versions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f84da49da75e592b46cb055461c7dda42fce277ac54d86a0957f8055456dd69. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/USA371147037.