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 0x5ee1a075acfafdb92e5ead7ca899cea7e453c388b65ba11e8d8b5cbdc633052c. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/478c75a1-9721-45a6-b3d1-e3a07c286297.json and https://artists.proofprofile.net/proofs/artist/478c75a1-9721-45a6-b3d1-e3a07c286297.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 0xd4de1445241286df91e2493fa2c6dc7ea37f24f8912d9b455fb3cea328165530. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBJAJ2400380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x050eea2cad5a3fefdc84d2a402a6af19fe3d8d9bad2a39c33d3ee3d107fd4cfe. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GB5KW2400463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a66d797655a4a67dc4cc7387531b68731cabd501105db76507f9d5afd6927f0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBJAJ2400245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38a61e1e00d758bfa8795f6f27ad2357073213545b4bca194d459933a8fb4c51. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBJAJ2400435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb871f722a1c68577403d900b19c437c11a05406c589653929adb668464cc32a5. 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/GBJAJ2400627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11262ee95bbdc6b5adb2c06160e0906ba2db8dcc5f6973681b7ec226ccb9d341. 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/GBJAJ2400186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54729540908f8b147cdbdc55e391c444ef2524a554c2d3a920325011366ad268. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBJAJ2400247.
Toolroom Radio EP716 - Presented by ESSEL
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb9254f20de8834dcfc3bd0902403ab1dae1f5fe03cd4d7c92ce93df1302d0a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBJAJ2301600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eb4c66229e8efcec1549effe0b6d7bd4272b02cdc28c321d0e3396834102a2f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBJAJ2301602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02394d1aca137f139577dec5c6b9a2ce3727fe48df1af01d7e5cc37e3bb43a06. 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/QZA742321334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f33fbb3c60dae62c72f94272747800ddb185203577fbd2caaeab7c1020f11e. 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/QZA742321335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bbbecdc6cbd3be51259e2925127e20fdf73bcca195f5c58577ca185e409bb78. 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/AUDCB1702985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d06a7be72369566644caf8e8a46bd58c7dea5ebaffadb1facdead3782331d1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBLV62408913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0861b2444427288b1a765f51578129371e3ae6ba6cd4a2627443c37df25189b. 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/GBLV62408914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1942d25a3dad9b344760c5b1a22abe042a9acedc14ac982687ca2d8fb6b41e7d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBKQU2452166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d3633fc2b6018ad21224aca3dccf0f23263460cc5927d55f5666f17dba5fac. 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/GBKQU2433793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7562e9bcfb6517efc9f92eed94518313cb4a76341863a4688f2c70acba177546. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/USNRS2443263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02394d1aca137f139577dec5c6b9a2ce3727fe48df1af01d7e5cc37e3bb43a06. 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/QZA742321334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f33fbb3c60dae62c72f94272747800ddb185203577fbd2caaeab7c1020f11e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZA742321335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb47e4ff0d28b7b7eaae6f23f289959f8efb7679fc3a21773a69130aae0296486. 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/BXIED2300219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a63afa8f0fd0bcc6b128ee8bbb6b9cc475f1335476cb3df4a208ec6b213e05. 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/NLML62300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf4db442272448b7bb158109d51efd35d733c433ad915cf876f6c73a4c459f15. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USL4R2227448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc81dd21fdba4aa1dd1c927d1fc4ac1ec0adf91c3fe95bdd04f6c02ab7d5974ba. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZTAS2211915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2331c795af5d3a8e19b89837e9823401ed2908113cf73581717c0fc15d0da568. 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/USNRS2242045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86316eed71c1166829782796a84561d4611b8eb6bfb6bc08bf00bc435ce2bce. 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/USNRS2242046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x017f2d22beb574ce50e992e7b072032b95ffd35bc19f739e2e4b39c5262b8afb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CA5KR2212074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99309ec2568ff6e9cf039bf9692b7f0cb2d15a5c825bd48326c0e7e696b15af1. 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/CA5KR2212075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0588904a16af14e258f0977957280ec961951d20f7b66ba984c235e01ba269. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBKQU2201112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e401959bc1ff0d395a6e03de0d7a057d9c4bc6ab26f6164d45bb4598255e5b7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBKQU2475384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55c0377430eaa6bc5733cc8dc98b23a3b2f2d56350544ae24057132b3fb67da. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBKQU2475385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde28e3fbac8c6ed5efd006e1b0856292e96b623c42b03d2005cfcaf3650c422d. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBKQU2475386.
Toolroom Radio EP715 - Presented by Mark Knight
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c9ba949eab178d23a12812b50a87534f989150d15049fc92a404769be7be94. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QMFMF2309976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f403cbc9c488871f0334e7a6090469bbb5009d5a31d7e009ebe0bb815ade37. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USBBR2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c59a1c8c0373a924303c57ba0cc82ac1bd2db6397f738bbf85e080acf73ee3. 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/USBBR2400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2f3391b64abea89c6602eab33fd6f8b4e85448fc0e066cfe486f1357c77d4e. 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/GBKQU2452165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1942d25a3dad9b344760c5b1a22abe042a9acedc14ac982687ca2d8fb6b41e7d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU2452166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73047ddd8b6fea3a340573cd3ceb78e8d68057a6598cecba17697aaa3353ce92. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBKQU2452169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f21767617607ba822d9990f04eeb631546dc932979f25cde4cb2984a05c1ec2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU2452170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d797898b025f9e7a210dd45300417a4c369c243f3559e8554b113fcc8da7788. 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/ITA061302529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe33d550f70c36ca48b0ff9f217c72a6dc16cc3a55f6f438e0db55ab1028b1d98. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITA061302533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c2021e6fbbf5f86d6bc7fea297099ee4dc968de373248f29053e3f3d7538b64. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CARH11900177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c841deabc64748f4b7b04c990041be48eb9f156954e6f41ed74d7b60c9b4406. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBKQU2487395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ccaa0d30b6291d84419e89f674e7359d54c62bd628da0a83bd9dae39d1240c5. 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/DEPI82300448.