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 0xb6e8f2d63fc47dd45c8dbe8216f4ee50457974f62383cd4202109b82c3da8898. 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/009974ee-59cc-4cfb-bcb3-23a309f7d01a.json and https://artists.proofprofile.net/proofs/artist/009974ee-59cc-4cfb-bcb3-23a309f7d01a.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 0x740ce0ed8d906dbec7e8248138ee2c5871f5463cf245240939fff87a16ea8675. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/USA2P1659217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3dbe655eb0ae444b87d5f0f017cac81df0cfc2b11c5e2704b33d46d884f6a3. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USA2P1664238.
Shadows Crawl (Open Eyes DJ Premier Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea88a0e0bdfdce843be16063aa720385b09a48361110cec3c3c3ec61e2c35244. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/USQY51764345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3dbe655eb0ae444b87d5f0f017cac81df0cfc2b11c5e2704b33d46d884f6a3. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/USA2P1664238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea88a0e0bdfdce843be16063aa720385b09a48361110cec3c3c3ec61e2c35244. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/USQY51764345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0706fe000bcf58b369bf64e8348849f883a9fbbf2858becd58b261be78225932. 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/SE5Q52003594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4245fb47e5662586b5c86b89063ff40e6935ee2434a493df95fed7f6125e2b78. 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/SE5Q52003976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0706fe000bcf58b369bf64e8348849f883a9fbbf2858becd58b261be78225932. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/SE5Q52003594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64676821fe74068823a2cfed2fcd27f3a87540014dbc8d59a45e406d3c14bd7d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/SE5Q52101799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee47106b3eef53e266de837229a63cbb88209c2ad2f00ed45e90516b6cd1435. 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/SE5Q52003576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b0e4beb650dc84d1c1de5eadc968d597da1a9963c59ded49b1cd40bac4d293. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/SE5Q52003607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0215d822d705727c6894ef8c1a679ddf1881f3afeb5ef2cd7068441ceea34a22. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/SE5Q52103103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65b5425267e9d4f5b022e96bdfb7c10c99f769f805e9c15f23b07a771dd4a68. 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/SE5Q52103815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24bddcc098b30c15c4091a88daef9387ad925c1fcefac2fc6e22b034ba2f94ec. 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/SE5Q52201404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d552121050da667260681c4b12c3f0a6f36d9c6ea420be0964e438da2f149a. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/SE5Q52200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2ee721e97298e3a4b07faed5f946d9975e09e96255a4338eb289039a78b72b. 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/SE5Q52202612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22362c2356f69c684108698a14ba4dcf436a9a9ff1d771c33d76aab162fcc51e. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/SE5Q52203265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f36e296ccb51e28a9bae5cc7c1e9def6f60dd2bf9ba7b8fa66c78db78f9ad81. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/SE5Q52300425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859d1bc62e0c8f72eb3fddcb4fdf47d17af224ef5f88fe40e190abef768672fa. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/SE5Q52203921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed8c69e5540850296d5a79cfca74e7dfbfbe403f348d71bb09930dfd7e241f4. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/SE5Q52300749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcba94fde51231faa9a11db637b4f0e17f3f10b06517b71e390915ebbf0373cf. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/SE5Q52301126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67e6d43e19125f041261237bf2b8ae0bd906f308ee3cb04501226c7b8c6f7f4. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/SE5Q52301185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac8401c8c001d6cfad6b0a9b3ce262234442b6206921e7b3b9540c005d8cf0a. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/SE5Q52302459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88cadf94302cf6623b72d03ba82ee0853141e731bc879bbd0018d2d942db329e. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/SE5Q52303169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09c150c41ef5ed455a930e97f102ad4415b7e3c599b7055c4d7716e8e69e243. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/SE5Q52303326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x078f81e485887658adf81ea3074e3b165563a3cf5c43826ac00bf30c5dc68047. 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/USA2P2442401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaddebed554848831e432d9045ac96cae7c2a5f033c88cd9e224dff6fe07bdfd. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/SE5Q52402756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f22bae15bbfed24ae175fe1a10ef3c3e1feddd98098ea06a9f121365f8c863. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/QZZ8A2463710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc92c783e0c26bae779d1cdbc0efe2c2f5c8b359a4bd293461b0ab6650cd12726. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/QZZEB2439472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ea953cf007d0f3d160f21a27e54718f044fa961e3c05d529eba136357212d3. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/SE5Q52403825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d48988447d3df72b9502afc95670886ae9eb1b3335bec9d6efa9c225844227. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/SE5Q52403780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1671da44d4153e9454a77a2e95237d5ba4920ec47977ededfedb6a2dab7a87c. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USA2P2403009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1671da44d4153e9454a77a2e95237d5ba4920ec47977ededfedb6a2dab7a87c. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/USA2P2403009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac6fbbf495a56d621557b003a65d482bcd52785ec54ad4ed03e8a6287b322a4. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/USA2P2403010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c67463b73a48acb032b3a481ac03eca900f7e21f980299a0352be384352fcd6. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBKQU2331195.
shoulda coulda woulda (feat. Deem Spencer & Torii Wolf)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b43fdc15f795d08cb575343ce5f3c29e8f0463e2bf9b5c29b99a527c37eff6d. 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/QMEZE1948889.