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 0xbeab834c2bea0e5d3c1632d846e6b9a76ad9de755597db7a217c028f5c00c541. Chain 2 (Bitcoin): anchored in block 953724 (2026-06-15T01:43:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ce01906-a0c7-40f0-b3c3-5e82ce90de2c.json and https://artists.proofprofile.net/proofs/artist/8ce01906-a0c7-40f0-b3c3-5e82ce90de2c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Smoke Weed (feat. Hustensaft Jüngling & Medikamenten Manfred)
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 0x6abb80372326ad2ebee1093e886f24065ed43fc08836d60b52117c679ac79491. 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/TCACP1675804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119c7fdd9cbe05c82f2af293d67db5e781442dad91315ae722cb4813af414e5e. 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/TCACS1696380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf67585ad2725e221d25f98b858ddb69c0fe3d866918f3091749fad9595724d4. 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/TCACS1696382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7638149664792a58156d881706a734db11e0e8b273dedbd55182e3bfca17d2cb. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/TCACS1696384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a03398f44fe7d02e7107f24b1f2b91cd744d88580791499bbb4be2516138780. 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/TCACS1696386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4412f0dc21c80fbe0d8d834c8ada695298a0149afad33f5e309cfb897c65bde. 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/TCACS1696390.
Gib Mir Neck (feat. Hustensaft Jüngling)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5b0b334ea045953f73fcb9d33012dd331050215d97519a9b731bc9ee998a04. Chain 2 (Bitcoin): anchored in block 960277 (2026-07-30T16:10:47Z), 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/TCACS1696391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cfe99749dc28e8b166ce3664a3473ba872ab5a03802d725bb415b8ffd9fe845. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TCACS1696392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d77ecef25ca2f1e183b1ae84d2b3c37f021f8d07f188e7a9cecbfa1e9ab473. 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/TCACS1696394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57bf97c1717141868e0bc4bc440835e85aab9555d402b13721a321552979e334. 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/TCACS1696405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b457e6db90c5cc86a4d7f46f5f02f54904d18a09476e283ced2dff4fa934bac. 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/TCACS1696410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e5a2019c3a5aaccc2788e19f44bfb5f1124b1ddc462a3d04327ff5db7aa18c1. 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/TCACS1696421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc4e5ea9bc3595e4df179ab77a45d62c661b2d6cc087bcf300998fe40e8dba5. 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/TCACS1696423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccca507b6f6e9231a99da1dbbae66ae1eaf9f3e5ec782a7d0f6e5069bca8a60b. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/TCACS1696424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa8ba6bf2b9140f7da42adbd3faf7edfdc742cb1c773b36edc92e1dc5fb034bc. 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/TCACS1696425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf6556c1163deb06fd2af202dd5426cfc97e0bb416de75b412bf28c03577701. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/TCACS1696427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353d7508ae45a57e8881f50b6194c343c9bc40f126c62909e654dad7e9b65a06. 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/TCACM1695895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc4fcc76efde011919d627a8aec269ef40af64c4cbd7f785b5d4b74395c0ea8. 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/TCACM1695896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4005beeaa6d16b8eff11e42b19eed18b05031af356207a43f0c4c87b7b228444. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/TCACM1695898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaabdbbd8a6350df5dcf111d040b0bb75bb9f6f77babdbdeac999957b9f007a71. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/FR96X1991545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2c154400873deea9d2d339c4153d4309d85aee3484ccfa19a23b2ea97b620b. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/FR96X1698385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f1d00a569d68a42f94e22022cbd8acd497a26fd1420bedd30b2f1ebad13d96. 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/FR96X1991546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd9846da3647c1cb8b6b34926bddda21eaa667597ed9614c9d8059bcab113b23. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/FR96X1991547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d0a46a02d7a1c6855b22d8fbb001becfd6db39f7829de420272af5986f75fb. 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/FR96X1991548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f7a567a6a701b9bd7af82ff4c9d107075c548fd0e51bec3a0b70e9437afb4e. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/FR96X1991549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c40ea0fc60617ec935c5b74f5a7c64fcc897d68ec5bfdf595406b63a9d906a5. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/FR96X1991550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c4e48d0c73d3d33f00c32531602aee77a4930d507f4e756ca52dad5a36c7859. 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/FR96X1698391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x796cbd59394fbbb390f14b1005c4cb783750211ba5b6f35760a802bfa0ac3ec6. 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/FR96X1698392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330b1c83cc33fc4a300ec830c33067aabbfa67a7be79558f8364b76baa8373f6. 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/FR96X1698393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62008894c72e5a7db66eba47e205631a45a0a86968a690ad0c7118b8ecc93349. 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/FR96X1698394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77448eeb2283fdf1824cfaae2b1860871d03aab6dbc2aa8f715654202772e26e. 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/FR96X1698395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bcb6409bc6553df26103d520c4b41e105f6ef9d95ca11e76905c993ad6b0e3d. 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/FR96X1991551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b7b6cc483f8df5e1ee658fa33fac5aca73fe2f893a7e4589b0242436e9452b3. 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/FR96X1991552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21db697015196b376976dd18f5e4b8da847d4395c5ddcc56f14040f2ccafffb. 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/DELJ81608063.