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 0x8086fa296f94c1d8318b7d63d5f796dea8b5736a0294b41f82fb8801e3a3c231. 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/1ecdb7f6-6c4d-40d0-9bc2-a40615e46a29.json and https://artists.proofprofile.net/proofs/artist/1ecdb7f6-6c4d-40d0-9bc2-a40615e46a29.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 0x0847ec41d9c4d56eb6cf75d4b6b6e992ca670176c4e064b102d6c320508db988. 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/USKO11000852.
This Is Halloween (nightmare Before Christmas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b76496800e09001eec3d8047460941a21e77f28b6215b7bbda08a6b22db30e. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:28:55Z), 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/USKO11000853.
Heffalumps And Woozles (winnie The Pooh)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2c5f6b3a08648036c77c84cdbb91f5f9f91804c7a93b5c631d47d6fffe804d. 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/USKO11000857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba319504d4c929c0091b9cbdea6e43d2d8fbb0211c212ebbc9f344f293a3903. 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/USKO11000858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084af42f17fbbf00b7e3a6e31c0d0c225419a5c2bcd6af43ff44e752e22df1a4. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/USKO11000859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eea46cb822f730255b87c9bb6050f9f905d9bde909709acc4a0ebed696d1f8d. 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/QZCE61818485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a5220008c23c21c07eb81b738b80cd3f10dcdce6d2bc6bfa17e8fd917212972. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:20:08Z), 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/QZCE61818487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ba8a695392198b31e63bba0c1e72d2d6ad3696681fce69c03903c64f48f1db. 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/QZCE61818490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7091c4fc75cca6b8e115b1347f2a2f90329997a5eb0ef77fb515d2c0a3899a8e. 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/QZCE61818491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d9b01fab3a07ff412e498a32fb833365366badf576a2cdc59a05b7e3e4f98d4. 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/QZCE61818492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc828e7d54495d9c994e6cca345378415bc5c27953f7a54954d2991e4228bcff. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/QZCE61818493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453de60876873ecf5b8c85c3f039ecec0a345f4e65cfc69ad3d0cd82ecfe5591. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZCE61818494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b21868027ed6a94bfdc6f518d300f497b711a41428eaf0855e13736ca8f6589. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZCE61818495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4fdcb3f4cd2edcf3a8434cf1b823ef758a5cb569c185f0710e1358bc9975aee. Chain 2 (Bitcoin): anchored in block 956485 (2026-07-03T10:53:04Z), 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/QZCE61818496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91274f6019ec3e46846be248f1dc05dd97362027816a75db626f0c010d938455. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZCE61818497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb52c435c7b7421df277e08c7a4fbc9d1a30037986eb8d85898f1335edbe3d9. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:45:12Z), 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/QZ8LD1976142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdedf6d3280dc6a4d7a69bce4805b5ab7a47ad8d00adef9dc43de8da7b1f0cab9. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZ8LD1976144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9349eb6d23d6de6930c0c93e3ea7d02e42e8c6830c8a1a3d75d368d133ef7e36. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZ8LD1976145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203d7c06e8abf79b648f576fe3fedd7e9b601a931c9c6da88aa018a7f2352140. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:45:32Z), 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/QZ8LD1976148.
Omnishred (We're Gonna Need a Bigger Sword)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5b2e7672ac292bf2ca7347a245aba64927c7941e87914af799937cb602348d. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZ8LD1976149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534b051a77d0505efc9ca8c5985258131e730c49ca9e5b140739b459a42fc2aa. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZ8LD1976150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbdfe4ce67d2befe87bc0e983190689e9f7086b33854dca1a357f605a0ac0c1f. 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/QZ8LD1976151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f7abacae402f8c05c84a7d7495d2c4833a374ce3475cbd2ede1eb3893f5078d. 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/QZ8LD1976152.
Killer Queen Black (Official Theme Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74250914fad2ee87a2a3dd89d6d64d051053e6b8fb6f67cbf8d1851abed792cc. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/TCAEM1972809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9416e5ccb9dc829e227a33e78514859bddfb4bfe0bc4de770cd360d224ad07. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/TCADL1885735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b0e3eace11dce5bd2b892ec7267791bb03decae669c8812d4c3be7568a4f4df. 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/TCADL1885738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56acb18877be4e2a014bfa055012ede77fbe362e6973bec03a9ad2c4b4b547c5. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZNWW2148910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0324fcc8aac6f0cd60bb699b65db1df5889c5060f9cd39a0dd4f636a4f589e. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:03:05Z), 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/QZES82261774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e46bc5f7691aeca5714323308f780d52bcecd499dbf20e2f341dfc8e605cc9d. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/QZES82261776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x851eafc3fa09776e227bd4fff18fe25525654cd087c47ff019ece70c18d70be4. 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/QZES82261778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0dea6fd6698e48a9e0023944de22518b70a6b9a4b08bb001d348eb96ec3691. 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/QZES82261780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8279abc1aad60ea12db7456a339facba705f52739b638511f1595828ee460c7a. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T03:59:57Z), 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/QZNWR2376529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86fa613d7aedffb0f3608145fa9221fa79dcc871940e26ab2f6b11a1ae4def90. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZNWR2376530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77ba9d5885d89a0f1d591e18a0fe9fda2be9c12881d662955594e11fc4c1c68. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/QZTBA2446820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e317c3760934559239c9ca67ce4e7f5b943bc1b144862542a748a18aa68af00. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZTBA2446821.
Super Smash Bros. Ultimate Theme (Lifelight)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31604b74e84d5121d5a9aa5bd62f78941585a8a0a2638ada6391303d395d92e9. 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/QZTBA2446823.