1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x128107f6a045e42a62223fcac506d987740a5b2fdc8dac218f38c7bd1a4a7dc4. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/54d0e3b2-7d4b-4851-9143-ec722013b727.json and https://artists.proofprofile.net/proofs/artist/54d0e3b2-7d4b-4851-9143-ec722013b727.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 → block OTSBitcoinBlock must exist at that height 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 0xa0ca5a34daa17d83e1a51affefaa322032edced6ea02ef7ba976059f4f0cfd8d. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/FR96X2561469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ab9fff5c27f46bc39f520703d91c5494b08604ace4233aa808f4e6dd401fb2. 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/FRX202592088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32773c9ffd0c4e54edc7b29e34053a87f60a7eac4c2e0851dde10bd818c9e5f6. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/FRX202592089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb67684254903a657bf19b855c92a495faf803d1a77fc6255095252cbee6780d. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/FRX202592090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaab41cb3f2c6ce3adce79790d55bbc03d45b1f99c0827848bed6960488b4139. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/FRX202592091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf30b3608bf97b1f47e7af74520f8c8d36051e379a43cdc4973ec69b74cec0c4. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/FRX202592092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x588f56d203b90f393dcc91cdd5f9d41f1e9987aae3898cb294cf6d373605c4c5. 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/FRX202592093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd5ee86cbc1c48fb1296d99e224f4dcbc775a3d0bb144762d3aeff065b4ffe24. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/FRX202592094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162e152765c3b859d2c8999bf950685f934ca4959c88c3cfb1330e224ceabd66. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/FRX202592095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb580383aadc1329d73cafc40bcbe6470213546677e46cdd7b4480ad8374a79bf. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/FRX202592096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ea3bf89c8451c0a935de47e21370224eefc5471776ccc21f138ff086953a1f. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/FRX202592097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36bbb60c0b95611ff2913cfe99cd6d5b73760aac6946f3f39d34d75ed446e577. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:02:26Z), 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/FRX202592098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f799e2e9776746baf917b4ef2867edef2b757993c0ee6b00b17455a905c69d. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/FRX202592099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x904ecfd659007f3085ddd393daa64cfafba5449d34d8ae760e04f96d70a74bae. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/FRX202592100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7bd88994c604308fcbce7215dee2e571f9b46ee9e5d7a0593de7a8a232aa57. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/FRX202592101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec670c1f0c511d6f51bd4053679b15e52472d216c93116f0f6572f7169d59d9a. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:15:03Z), 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/FRX202592102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b66693db5648c664d06c850d073a0b6a82a4ead7fa1756a66687a54d419e2dc. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/FRX202592103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45f593e6721ee7eae0c33ba3ad00cf17d1717dbaf477e2aa0fc250dcce268812. 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/FRX202592104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246294151bfac0705c34355fe5d19569ec89c535f45492d18c28c115e7e937ec. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/FRX202592105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x973a86ae7b20d4842266d2d94551a2de4c960c67f8052c3d4123ea456324f02d. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-20T00:09:05Z), 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/FRX202592106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9be728c1c09f10745ddd2243b24e462a530ebc7f8aa1dfeb0802e1e3019005. 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/FRX202592107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49dd9eb9b39ed071fbb7bfe6c3340e22274d0d41d29630cafaade4cb9370ea82. Chain 2 (Bitcoin): anchored in block 958635 (2026-07-19T00:58:42Z), 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/FRX202592108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c9d6fea1a6d2c7c148f10fadba317ab0e23fe40db9d5c9a9fe1f3538b22cc9. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/FRX202592109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d30e7f971a45b97889413c31a09891fbacca7a8cd29e86119aeff53e0aba38. 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/FRX202592110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2cdc0abe0cf2dc99a8180007b43ae16c18e76132da7e358891987be5e0243e2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-19T23:52:37Z), 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/FRX202592111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09ae7e36ab563af48f5683beaed9792846f74876529f99986f294b8f10d156f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-20T00:21:54Z), 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/FRX202592112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3cc02ed18a9389c7868c3fa7c340e06b1112ffc7edf5907d22a5ccecc0a512c. Chain 2 (Bitcoin): anchored in block 958635 (2026-07-19T00:58:42Z), 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/FRX202592113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c154a3825c40d7bb55db68195be3d175b13c72d26bf32e6211315601fc30ba6. 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/FRX202592114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac035a955e9f585a9ec78789eea5f7789f1ff00c6f69a4e910eb5088b294650. 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/FRX202592115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4b53e4db18304287de36e7dbb898655186fe38da0d6f994d569a3195899b0b. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/FRX202592116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfcdf7e4dd1920a6807de6a9cbf9449a2f4bdc3a2b9f8ed8db49b506ee21d732. 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/FRX202592117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9200590ade5e9aba7c492f75916726f0fb33ecf31966b5fc8c19e779e7ae014a. 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/FRX202592118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6dc8b755917dea99be349c6a4f22a39f8c855150e378abf022148d76cf8405. 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/FRX202592119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab51e5e759cbca137f06e365b539aa6b51751c379ee1166386bfd2224fb33d0b. Chain 2 (Bitcoin): anchored in block 958579 (2026-07-18T16:26:17Z), 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/FRX202592120.