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 0xdb78d059e07326d415d19bf1f59761eceb546387ca81d602d9fbab1a6bc302fd. 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/d67036c2-03c8-4c99-a03d-9fc13a459feb.json and https://artists.proofprofile.net/proofs/artist/d67036c2-03c8-4c99-a03d-9fc13a459feb.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 0xce25d7cfd1f1ba6b78b79252874e0355bfff2aa44768622fa86b3b921cbf980e. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:46:50Z), 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/DETM41610183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d3083cb71f363718c676fbe239a134f6f323ca16ef4ce239a268cdf6109a18. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:09:05Z), 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/DETM41610184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb6b605ccce24d40a9769b1602b678350346cb2dda9b386fd164069947924233. 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/DETM41610186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da0073988b02854abfe1f61f0062d42a4c38dff86c7f6b380e20e05a0565ba9. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/DEWZ81820001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e176f0efc6c493a0824b0723d606142bb3b698ca3db5c5be51b615aef36cf8. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/DEWZ81820004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea92ccd4b42efceb703494cabf37156ebc4bedc71d7f40cf6e10551d218f06b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DEWZ81900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb87cb4998d574072dd3c63903eb7f57bb54d013c2651b51a86c1edaeff00ec25. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:44:55Z), 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/DEWZ81900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e866d2c49ef6d20d88169417a381cb2e8bd652d1e9ad9e9612d27552951441. 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/DEWZ81900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc230f6faab051a284afa380937bd418c0c467b55a52c883175772377b434245a. 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/DEWZ81900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea1e3f0b262343a5a0224c5601dbedcea713eae9bfda797f0b16c666575cf33. 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/DEWZ81900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b0e6cccc6888a388ad141081d3b5b55f10beca2df1dad881b24dfb2eac4703. 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/DEWZ82000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf067e9bad93429f4923f079d100d74bace036b8527739f28d279668c7e6416f7. 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/DEWZ82000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf61e85b3445702b3ef8651564565dba4defd9b59e39002aa4156a64be17883f. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:25:10Z), 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/DEWZ82000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30cac95cdc6171a2d0257c6e2b4d0eabcb31e24338607a83a3ec9ce4a8a74e48. 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/DEWZ82000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b0e6cccc6888a388ad141081d3b5b55f10beca2df1dad881b24dfb2eac4703. 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/DEWZ82000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf067e9bad93429f4923f079d100d74bace036b8527739f28d279668c7e6416f7. 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/DEWZ82000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a17374ad9016c1ae079b3e16572594e7b27eb211e581c471c8cf2d351711fc. 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/DEWZ82000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060788b949b3250eaf4ef4c974992c80434bb883f5732bf24e24b0aa03bce76d. 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/DEWZ82000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4de03e13bdf3b8a8be2e08c02dde429a3d5a3944c291262ed8693d645047b4ef. 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/DEWZ82000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0dc7fa751f56166022bf4f326078e264e9abd2689de335ceb2688e2e379830d. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/DECE72103256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b559bed3be133aadff7f757d9ce6a86f211112abde0e75d37bf9f076eb097a. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:13:33Z), 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/DECE72105087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3848c97353b5d0146efb2e8cbce36b43c339e9b158fa861ad75d3cb967765740. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/DEA622201198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830ffde9d6cf53eb3cfc63a3d35563ba7db56471c0a05b68b79727131441a465. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/DEA622201918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea3458392daba7f8b765a5a3141619da0cce1643e483b9feec876f4a637fff7. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:10:41Z), 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/DEA622300244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9149a1f9efa3f2046aa64c301f5ba5b2a078001e44f6695f0180652baced80a. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/DEA622301022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8bb8596fc1c8f1e681cea2c2eef396290d3bd248eb32e3e64fe2ec6451239e7. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/DEA622301404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f83b9d32a232fdf53c6f4ec6aadd47e4e43d7839c9606430c1c45897969cef. 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/DEA622302032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb43f5cbed1009d24a6ab80e1d61b95d6f4602ad2af3c8278543eb30454a2262b. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/DEA622401702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab1d01a5f643055bd10a103c9ecb42b311938ea4c125726fc7c5e912f9b7dfc. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/DEA622402430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21e37e22172d194155fcd38f5c81aed3681be7a93cbe5addf1c6ff7fc0d076f. 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/DEA612400137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5e773e17f6d95a0acc32f871194a2d8eac9387af0917322ce6dfc1928fe9a6. 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/DEA612500474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce2f8ca0da7a08bb0272cb2a7afe19521544814970c4d0fab7f599dfa8b2fde. 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/DEA621700844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce2f8ca0da7a08bb0272cb2a7afe19521544814970c4d0fab7f599dfa8b2fde. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEA621700844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c4f9761ed4276bfe96a1ad891e9f28154ccf2ab56923a221002391bfc79b9a3. 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/DEXZ81900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x901e2297f98bb3d242273cfc759fc157cc7b19893531f707e8a3bddfb494cc03. 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/DEXZ81900027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce2f8ca0da7a08bb0272cb2a7afe19521544814970c4d0fab7f599dfa8b2fde. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEA621700844.
Komm wir chillen (feat. Yonii & Bausa) - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x306a50532d24e99f2d02b0724430a4952c48df58ea7c1a0af2b52e4f610e51b3. 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/DEA621700860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578f8a8f3f1a30d8decf95ce17426bab3f077f76d0e0fdef6be39c8f8455eee8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEA622402337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80db93dba527228235222f63b87870b576f5ac2e42ffaae9700866b58843fabf. 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/DEE862001908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82394b9ee4f5aba781edbbf8ef97a1c016172b76872dd9f6c0b4b325e35e5529. 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/DEVY22100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x335ff0d2126f127e2a30ae81134042924af652a0471e0aa47c1e1e862e96205c. 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/DEA622000528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f1f83544bae94387e1595aaec2e179e863f83ed28977f0843e5e54c8b5d4126. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEWZ11800040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce2f8ca0da7a08bb0272cb2a7afe19521544814970c4d0fab7f599dfa8b2fde. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEA621700844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578f8a8f3f1a30d8decf95ce17426bab3f077f76d0e0fdef6be39c8f8455eee8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEA622402337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9268749aa3e123faa53aa9753577e9fcf3e92c56600419d9b199d10b6b2f92a. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/DELJ81814803.
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