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 0x995dda78028c7f4bdd7c2845ece503b4ddadd2a211a28d547e09547319e4681b. 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/b28d9b71-21f6-4399-9e0e-fd33bdba9f97.json and https://artists.proofprofile.net/proofs/artist/b28d9b71-21f6-4399-9e0e-fd33bdba9f97.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 0xdc99b70475bfffb251b0bff225db2f88120c14c03bfd430ae5ad257f1dfa8529. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/GX3Q92187181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cbce2d3f2d7aa49f0c33fe40d8e38543df0873b79c8fb9b41a9b489423eaaa4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SE65O2400401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa46100bef97d877d2195f1ada5f460850b4806116eb998515d13faf6ba603001. 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/SE65O2400402.
Mistlands - Dvergr Excavation Site - Unearthing the past
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da9a67832ff0c99c6866b6e1780f1bfdf009ce2afc77ecc1fc6a17b46edd9a7. 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/SE65O2400403.
Mistlands - Dvergr Tower - Magic brewing
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5756b35e52502ba7b64cac512ea8dbf0536d03dc4776488a91a649f695938dd. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T21:10:13Z), 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/SE65O2400404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc38528c1520374891d309b4567241dabb3d5ae6eed1e8c562f84c65ee712e43. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/SE65O2400405.
Mistlands - Kneel to The Seeker Queen - ambient
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40888b80a877e2398ce1ce81bf031257905b343be98eb032474469a4cc669853. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/SE65O2400406.
Meadows - Village & Farm - A sigh of human life
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52da469d05ac507dd7f4e477112a2074fd179cf77261318234772f87618e8185. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/SE65O2400407.
Greydwarf Camp - Smoking soil, moss and bones
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee8222cd4e1f6a7cb207d5cbf38c7a1441b5be94a2d3986c6441150e1ed44551. 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/SE65O2400408.
The wandering adventures of Haldor and Halstein
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0498873c4317ba001014197db2152774c316aaf32c3e9465d5efc45632bfa334. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/SE65O2400409.
Fuling Encampment - The horde under attack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7060178743e8b9800e0377ee09139290bd4fff67ca072ea2de63a6f650c10b5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SE65O2400410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf1ecd0fd540d80c64d93df12f7fa6262c85bee19d7b07799a6017c0e8a14b3. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/SE65O2400411.
Plains - Stone Henges - Stones of Morning Darkness
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd95662e824b74ba056f99ab574107925a7befcd3b18a666f84ef0bd1765982. 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/SE65O2400412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1cf11c4167ec01978f8e7353279e3e71cebae138b123e059907eb38b1bf9329. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/SE65O2400413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe05ce31983b02bd1bfa153b26683736c2b6272148cb69e444b65b4c3ebafb6f0. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/SE65O2400414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1ffeb9a13419f2d47af733c633c27babc5eec8afe8eae22046bbab0b4f13e8. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/SE65O2400415.
Hildir's tiny emporium of costume changes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a1726476499c184e981689eaaadc1f098b7d15a3c561dd9b7191099e1d0aba. 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/SE65O2400416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc203c812473b98e3c84dc2354565a31cc4fbd33ac7f30cb16cda5954b80cdb59. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/SE65O2400417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3f10c699c340ed506c1c642ebcd8172ff9b75552a86d731aa8bffc0447149b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SE65O2400418.
Ashlands' Ruins 1 - Where every choice was made of stone
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06611c78a83ee35bd7d3280e8c3dcbcc15165005de324f04dbfd85b7bc95ef8. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/SE65O2400419.
Ashlands' Ruins 2 - Soaring high, come laying low
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeafa3f507dcfbecd3065dfeec6cd68b1a14fb50c03893b7dbe2dda0f8af0dec2. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/SE65O2400420.
Ashlands' Ruins 3 - For all who lived here
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb31c260bb96058f8ec9e55bb14626aa5bf65bd2edff0754f408a703a1d41b163. 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/SE65O2400421.
Ashlands' Fortress - These stones have witnessed more than most ever will
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x264975f307e431891668200c519fd787e18cb449b5bfcf7e6ba7f9e3d9fe327f. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/SE65O2400422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7547991458844aa90dc11bfa635f886156f1e3b214f93473d7371b97fe87d229. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/SE65O2400423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15a843373a0f76adda0de5df8db4c901780514a5ec24e2ebff9450bbc73ed929. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SE65O2400424.
Deliver At All Costs (Original Game Soundtrack) (feat. Solid Sounds)
Peanut Smoothie Buyer (feat. Solid Sounds)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a531f64d5e705f428cc20abcb11f2fa8982dae23314d5b4920e17951c42ca2. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/USQX92502570.
Remnants of a Dead Dream (feat. Solid Sounds)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f20346a578cf0218aa6862c590d666e9e67268a4c3f24a53af77eb5f90b8c6. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USQX92502600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52bc2f565f18193bfaf70963ca69add98cc69859bdf6a287380cdd5bc530e05a. 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/USLZJ2421510.