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 0xe0be8a6154f863da851e30483bad4cc721fed9b4861d33331d4aff1aed221043. 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/1a3924e9-9404-41e6-8905-8812779e84ed.json and https://artists.proofprofile.net/proofs/artist/1a3924e9-9404-41e6-8905-8812779e84ed.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8477e40950abd2362f425f73cfef7e3bbace0ed71ce2001cea672645e163025c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QM4771500033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f76d2c8fd77ad66a87546e9f4f102a82c4654a4d1f92d7f7442c4d7defe767. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QM4771500039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7c0d7df226965c571b5a431ea4bbd93f2b0e87e17f6d5f470d288abbfef946. 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/QM4771500040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d20608ae8a212346bde92cc0d0fdc697a8de3b8c805ae29a812017f7ce0f25. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USPE09000179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176ca4fe3f80830aa579b47ea3575b643b83335aa054aa03b2f0ea05ee65d38d. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/USPE09000184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de950b3430017cf12cfc4aca17c375ebd83d09e5c44a980962200904c779278. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/USPEK0900026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6c64040d98930d47a231ecec915e799429a526ea53690eaa5e4a2896f944fe. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USPEK0900037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449cddd101783a2588008cd6e679d5d8a319250e75c867729f5550dc93b89a2a. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USPEK9000171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77284302405240cfeafcb2c7372e4971b3c78fa5e737e501c56db954f90e191. 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/USPEK9000172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff8ebd91e0123c55c489ce53f73e22d2b16f337e646cf75ce3216a91f78ae1d. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/USPE09000197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe7d0e63ed1bcc392eec7a605da8acd272446c3e60de018a6b0d0cf2344f9bb8. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:51:17Z), 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/USPE09000205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0880eecd2a1d9c54ed9c1adb11d2a890a94e5b710d48288cb1866393d0f8bdf3. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USPE09000208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e4afa28bfdf968ab829dbef0855e8c948d5e5373ebf3dab58608bdecb3a453. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USPE09000210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d17d6d955fcbed8e6f83e2ddecaa9c94fc065980599b0bdcbfba26ff2b5330a. Chain 2 (Bitcoin): anchored in block 958124 (2026-07-15T11:00:46Z), 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/USPE09000213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52a974d3274dc5ebbe3fff035a99bd4f0411036e2bf0c622b7081945fbdc0c0. 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/USPE09000588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a207222812d53c5ddc6a79a22310d77f224ae9d77b2309e73954170046d9b76. 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/USPE09000582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1074a8b86eb9757cf2b11075fe08a14f8b45018b2a7b739f6f91b9224ab59971. 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/USPE09000583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65087d87c462b1b8c4d18f8c66ad6ab58b5d7922959a52343cbb65b8e03165fa. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USPE09000586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891dd11305c7b6e059256e72b3c0cac2b6397017bf03bc2aeefa9c28e3db1b10. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USPE09000593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea25e0df80df171a26d5eb600c3176380063d0ea725bb3a6463b38e79acedd78. 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/USPE09000308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee7211dd42e822ff604e6c5f98a4bcea5d5b8567c15dc5d4c1a830044c844fb. 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/QZTAS2298985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc76840163a073e23884ebd6f2f1216c4fc799ac2bd0c149a9690fa6e6af6080f. 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/FR59R1644785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe432c57e0c7dfcd35e6ee6139afb30499963f7329cd013dbdcf85c05b5fc05bc. 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/FR59R1644786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7fdc1a1756847ac0eb234b65642a9276215a1d942fc8ff0b84778933adeae80. 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/USASN1101109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b9c97eb0cf22d6b514f6cca817ecdc6385b0cc7a86c0e693143a28b49fa806. 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/USPE09000454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2fd4fe59f503412ee9cc9cf89a02412ec44052ce9e4c16f434f849aad2465a. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/USPE09000590.
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 0x8767280893ce3f9500699218a54152b2ffef9d4054e5ee327711f2ad4b7d96ba. 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/USPE09000592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab754e2cd4099cafc6d475ce1ec3d680714c686dca66d3417f7f7bb7bcdf03d3. 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/USPE09000307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be45cbffc266261237ef43ef90e764285d0a3725e1a7475369b5287e85c40db. 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/USPE09000310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd00d8bed5313cabb04bec1b52bbbaf08d26753e5aab24f7443c69da701589a. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USPE09000311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc408f7e02e08478f718ffee253a574a7d6a546147f3694c582c1ccb3649dd2d6. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USPE09000316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf97ea3ea81a113b48912ce3fc76a31495c829083f84fb0b925dfa30b40cf1942. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/USPE09000476.
Sancho Oldie (Feat. Silencer, Royal T, OG Playboy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda232c5dda92c2aa5e5a3bcddaa8e6b0db03eaf73ae39a1d149e13f5cf14fd95. 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/USPE09000489.