Valery Mikhailovich Didula (Belarusian: Валерій Міхайловіч Дзідзюля — Romanized: Valeriy Mikhaylovich Dzidzyulya), better known by his stage name, DiDuLa, is a Soviet-Belarusian guitarist, composer an
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 0x3af71de19fc6a17c872b46c3eb6a221173b9894487fdb2f9062c5e5fd3e94b11. 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/d7b2e4b8-b97b-413f-9be5-eccb000257b2.json and https://artists.proofprofile.net/proofs/artist/d7b2e4b8-b97b-413f-9be5-eccb000257b2.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 0x67ad2a36458d2ea5192f7d7d2d067b1ae96ef9c7997c73c650e702b51ee9662f. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:36:13Z), 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/RUB421304594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be155b00be3a4d8448c0c5e4ad49cfb779d16cecc817f8b416af1d21e210f8d. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/RUB421304593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d2c2cd7b8dfb171db8cd395529118faee91996172b277a9f675d2afab64d8f. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:18:46Z), 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/RUB421304589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc773120b720bf1b2378b4950d432451629d98b55d7aa06e84c970e5b77445d02. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/RUB421304554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970c918c2768a7d9e4e6ff61fcc9c7511ed0cfb55d40d09d30a7e98db05147f1. 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/RUB421304551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa958f0d74e4704377d42c27d3315e19891366c6c4c45ed07bad716fa1d13740. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/RUB421304556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec58f30fc35134cb764ae521f1d4f5baa8c1fae54ee0a737ad45e79f0967232. 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/RUB421304555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53445dc08fc5c293db312bd5a3d1a1eb5b5db6962d1f1f1a3611ab6704c9867d. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:27:45Z), 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/RUB421304576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c69fe9236a6dffe8b20398a33746688cdc6b30547a4630c7b2175336db43d8. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/RUB421304582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19cdee1e81b51a9e8dc04b487399f836fc158d369caf41b393b02d3afbe0d29a. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/RUB421304532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7975013210f95d8eb8eb5dda7dfb882e528aa274f2ce2d8a2e6ca4ec445dbb7f. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:41:57Z), 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/RUB421304519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66de282be025486b7417a1c9c5f9a0e338d3c172947cfd155b0897c578d06250. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/RUB421304525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414a45aa9cf39c35e9286e8911585661c0fbfe66c1c85d3a60320fa7f979fa6f. 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/RUB421304596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7145757f8284d5ae63e1188c9f85406c93a2d4619fad51c10e02e42341c3201. 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/RUB421304602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ac068ad928f4642c20ceda5ea9a7ac0c37ce0189780c8bc3c7550132de7624. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/RUB421200387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa41dd02436eca2f064f04af9392220197cab679b2abb77853bd78bf3f3a54326. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/RUB421305654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c588315a7245024facefc55ed5162159bb6e802d484f78392705e5df2b03b43. Chain 2 (Bitcoin): anchored in block 957591 (2026-07-11T17:21:30Z), 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/RUB421305655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1cadbbe3be399f456abb5771c00d666a2cef8964e315e1dfae2eca5fe3eb77b. 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/RUB421305657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5a2bb4d1d9ee0f3e89bfe5d0fe4c0ee19120e817cf609a2ebde088a200e355. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:22:28Z), 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/RUB421305663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b1271e365030c008ef88bc541ef1539d35e1cdf3fcfaa44288df571b964275. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/RUB421308744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c2603894c3d6911ca6e7882f56af887eb38fb63565ce5ac861c71f22a22348a. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/RUB421308745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4da4819b81080ba930e3151918860755d87c7432f2adf3738b86596ec524f3d. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:13:37Z), 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/RUB422100192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93acd332e2ebf8777ef89b930e1f3e02bc811415c691725401c8cc6d716b8050. Chain 2 (Bitcoin): anchored in block 957587 (2026-07-11T16:48:26Z), 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/RUB422100194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a6fea3c5754d14f835a7fd3d2f764f63945f63e0f2396b043a0dfb3fab7499. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/RUB422100197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff07322c5a985d008fde37ec98817c9da5876b37f7b8a7995c81a72720faa55. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/RUB422100200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90f329fcb2119b12ff4cb533533d3156b1a62a3f4e66b5394d0bebe90c56d49. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:09:25Z), 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/RUB422100202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c5b185ff2d93f89f84e119197da40b10b6599801fc37b4fb21d456e4384f44. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:19:57Z), 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/RUB422100983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d610e24a54b8cacd2428b48764fce4a830b376b55746289b713e88dc1d9bc7. Chain 2 (Bitcoin): anchored in block 957587 (2026-07-11T16:48:26Z), 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/RUB422100985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1658d78077c08f2fffa67b93cbcbe6a57fa8f85d40475d75a15c7e026ef32630. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/RUB422301818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b5aa422b66b98a6591c142a2ee32a0ab3a3363aead91450fb62e6e0b7abbef. Chain 2 (Bitcoin): anchored in block 957587 (2026-07-11T16:48:26Z), 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/RUB422301819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70bc9a6400d3942d804a33163874f2bc76ea25348ab4b32301e2fd3f459654e7. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:06:01Z), 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/RUB422302727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee83ebb8ada8e0ae7812c74090de696ae61594be53e72b6e9d52b4a7ebc2bf2. Chain 2 (Bitcoin): anchored in block 957591 (2026-07-11T17:21:30Z), 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/RUB422304028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e89bb04c138266fe831264512f2d94272a53b3684383d0bc13ca0cb700ed67d. 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/RUB422500915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1dbda2c250c07897711068ed60b31296ac95c7f4bf15082975d02b597aceb4f. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/RUB422501044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ee15b2d6fd75ce66f1da67fb418ac22c0716dd26624a7983b4af6b2da3b404. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:27:58Z), 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/RUB422500567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2765eee13c59047f815248f01f50eb357a9d1b90356dbce15a04df6bd6376dc. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:20:19Z), 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/RUB422501047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6087166807f65c8abf9ef22686eb0b9dd7292f8d3094c067aa8e19d3aa146a9b. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:02:49Z), 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/RUB422501049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e89bb04c138266fe831264512f2d94272a53b3684383d0bc13ca0cb700ed67d. 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/RUB422500915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908d6eeecfa674e702a4db9ec8a43d61d9bf058c30f56f54e7c348730dd65e93. 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/RUB422501050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499a98443f4b9b2d9b66db43b37cfcfebf2627eff04b31fef018053b6a156da2. 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/RUB422501051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf317347dd5160eebc0bc5be46f935ac16e3a66d8d57d5eeefa6158d0b44fb019. 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/RUB422501052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf7891e8d6e73bba471309a11709175a8cd355f09769994cff8b67cc36eff8c. 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/RUB422501053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619d6f3212347e9facdc9aa68f34be23e3df6f645521fc64963d1d3369189f0b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/UKEX32524259.