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 0x539c0431a56588a62294c32f97a9a0d48397ff44da69aebf30aace174898a90f. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f9776502-bc8d-44a2-a331-ad634951cc12.json and https://artists.proofprofile.net/proofs/artist/f9776502-bc8d-44a2-a331-ad634951cc12.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Minecraft (From "Minecraft") [Dance Mix]
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 0x3d090a2f85e134948b74339853c2d2f4cb7d0b0469f8aa0ea64f27da72b16d6f. 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/USE831593273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6147549cb0e2c3c1257d691dffa302249fd74b9759f81b09d66260bb7d4e8b07. 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/USE831593274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a53562cefc0c9049aa96f7e461c42cc8c4080897f0d4764b97983b544af5972. 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/USE831593275.
I Won't Do What You Tell Me (From "WWE Soundtrack")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29c4a935fc9afe92ed81ae48ed2fec51274fcd0de33ac65e75f4ce10b8eac23. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/USE831593276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d22bf34482e63f427c08941891315390247a5ce118a308adf098ccb8be230a. 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/USE831593277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd44e369c193ad3c356c040aa7203ce131ed9d4d1e95a3121c72593eaade2495. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/USE831593278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69da0ee14583abd0aba13d226f95fd2731ec17e16b6a3f057e0d9527d946445. 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/USE831593279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0428689f77e10a363358e72eb5e6ae259097b4d5ce5a573b1ee520d20c2bba9d. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/USE831593280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78bb96fff368c2aefe4a5f6988f1c98733025a2ea2dcf55391b21343740f135d. 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/USE831593281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b8f199f767241800c31d1a90c3cc6b56245e2edbd05d7a001351926bdb34a8b. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GBSMU3662490.
Its Raining Tacos (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba2ba04c9c8fce298a4d77ba2811964ee7f70a43b99ef0e7c22b2d1e0f4b63d. 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/GBSMU3662491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96937791f2d1a7f9503ed0f373864b159a0effbdfa14416a0d3fd20e3e3eb1de. 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/GBSMU3665380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf35cf5d7b7e60783ecb8bbca3e85a87439249f559dfdec75d2b4a886be35f8bd. 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/GBSMU3665381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e32518432c7191fd36cc361018e20df7ac4ab866f138e42d597f54787f1a7c1. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU3665382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde3009115afa28d86e4ed251ada6e32615b5c00f8cf36c8b76e7949009688ad6. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/GBSMU3665383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7e02f1964b070fb650ee12f775392be63fce2cb82f6e1a40562d9a50f0a40c3. 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/GBSMU3665384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c38795adba5f6ede238e23c26652f36278bbb41780d842d68cbfd5789205f89. 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/GBSMU3665385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b9b24fa64f9dee16f4fdd0283f84b92aaf05bccbd8329450559d0d51eca7d1a. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/CH7812416634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc316dabba8585aa87b69b11be51add279fbe0a95e8669655363f4cf9698513a3. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/CH7812416637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05b9149582946c63e2d416918d1caa4493ea1fa22385d754e43cb703980b010. 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/CH7812416638.
Gravity Falls Title Theme (From "Gravity Falls")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1a97cdb94e36c5611accf8b5b383537cf7bda76eac40452c0a247a16554721. 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/USE831593489.
Blood Moon Waltz (From "Star VS The Forces of Evil")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48780bbf43b44b2e3350318990afcbd00aa3b98dcabca93e6369bc07ad7deba1. 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/USE831593497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b10a1b2e3002e5a2b968e48f09c49af8d6cc24f5bed064306468a8eb4d8468f. 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/CH7812413060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771071fcd8b564967308eed83457010f45537934d8766862b00408a35bc15650. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/CH7812413079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1843d6453b54718cb5edfd2a362923ec1e77a62aa10510bf0e397a21a4970c8c. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812413083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4688a2942737cb89b11670337f983d6656b402b659b2332a2836fa31c5c996ab. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/QZWDW2466629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587a63589e474e8489e0e3042eaa1c5428002facf8f02799992d31f1a021b5e0. 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/QZWDW2466630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f9101f34771a512ad02d6781964d6ebe439094f7a76433c5ff0f43109c39b09. 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/QZWDW2466631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1683eaec2f78e5801e26ab1397d7c4238e687b76530df19055847b778b399de9. 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/QZWDW2466632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a1ed72308e63d72800056d946e75c4dde69a5e563628e10405fc2f008facadb. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/QZWDW2466633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba66427c088c7c373dcf083bbccaff37ead60c783633e02103e5982d40949fed. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWDW2466634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa73a9099f8d70ce8988fb3463eb7bd6ce841f8d4a2b5c36d34ef2b7517d4a80f. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/CH7812415393.
Library of Sound (Holiday Season Edition)