Strehlow is a German surname. Notable people with this surname include: August W. Strehlow (1867–1943), German-American politician in Wisconsin Bertha Strehlow (1911–1984), Australian educator, wife
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 0x886271b1b934d4c1802ebaa88f3bf933a584fbe579b504f6920074da087cd52d. 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/f523b4bc-fe54-4d9f-b717-59a56785e64c.json and https://artists.proofprofile.net/proofs/artist/f523b4bc-fe54-4d9f-b717-59a56785e64c.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 0xf607c7a32057c28ebf0618ecb37bfd4409beca83a8fac692f570352b6ea06bd1. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/FR2X41588593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cdbe7f92d1bae334f4870b130c962fbc7a3939c4fd3e5634dec0f89ab6c4fd9. 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/FR2X41660936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e8e29bfc85dcc6c86d42ea46421b9667eee4a1b066ee2c4a0b62e8731b35a69. 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/QM42K1612814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec05fee1f79ece4caa7c6020d90de4e10bd2e3a566195065b255ce2c54b07316. 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/GBKQU1973572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3387d31353fe2e5ea9ae23e7c1082ac3247dab4fe56b9f2149d97c76d56b16c. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/GBKQU1973573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ea7712e255ece2c09b467b8e2572a67906b9fd8996f66c560bab4aa5f50686. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:41:07Z), 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/GBKQU1973574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba33ef0655524e2a3c3ebffbfe73db93675881e15b21e64031a28620c002965. 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/GBSMU6819984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4702dbd06ca5d003a0a34b041ef2b85de0a2240dc389eb1ed9d349df96cec0. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:53:46Z), 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/GBSMU6868966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac9f65081b25e3e897b4d08b3c5783fb8dbedf9aaff20d1f1749977f504a9ca. 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/USANG1913713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c580127b0278534ec8f3b7f7d9476512dbe0781f9367e9e934fe6696b65cd0. 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/GBLV61924366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b17041c091a4e306819523513f8da2cef1c13616e0b78687d0dc372293fbce. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/GBLV61929945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02712d6d50524073fffe712c3f320e06a9fb4dd116674043d643bd9c59470165. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/TCAEU2091053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1097c1ff68c9dade06175095e72bb9f43e7030245eea1573d0a3f86b786c7ae. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T11:03:14Z), 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/TCAEU2091054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b9139752c9649298b8ecf2270f584dc7b86e43f427ddbb14fae03152695824. 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/NL1LE2000619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1253148251d7a56d480bd85b0da70ff5a7cd0001cdd75e39c148643e7286b8ed. 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/NL1LE2000623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82bfaab63a91db8432ecd8040b7e754d863f052c16dc1fa563af5d726f45984. 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/NL1LE2000859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d307452ad7ed593b208c92c3f6810d18132d39e9f57d956787a48f728edd262. 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/NL1LE2000618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392014e49652167bb3bb34b34c72b0383172a3727dd906d2741823bbbf0568f1. 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/NL1LE2000860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x990fc435073b389b06eaadc9161609041852ba9d670240239ee47315029f75c1. 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/NL1LE2000621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed5f33c481a1411475f712365855b54956c1bcb0789f09783af85a8b185f9d4. 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/NL1LE2000861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fca186b14495bb51a848d622f8eee65010eda6da3b3c305b009cfe4a3f89ce6. 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/NL1LE2000862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37edfcb5b23ba8c2d575efc52acfab3bdbd3bcd87045d30911d9c0367379fba8. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:45:49Z), 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/US3DF2012316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d69e8df302fb771275f21841ca8d20c07d0b3d29b0f135f85b1b8c8e420267. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:55:21Z), 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/US3DF2176349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2d3775fbe928b4b2db8e7a2948f87d875ac95643368c790244ea8458a16cbc. 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/US3DF2230040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7353bd7cd5d0480594f7ac299950a55582511865cb6aabda2bb39de91abfa5. 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/NL1LE2303287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f91f0c2c46262a8b7937210a09f405c14cd8d73f90875bc2f58afe7378a7849. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/US3DF2423323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc0f443d26476fd2b6dc5f6b0857707f44ad6fe118a0a8dcc624a65b13515ae. 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/CAQOI2403384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc003c2073941ab14e320c3f4a2fa88c92c75811160597eb6866f1ff3c457ad9c. 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/USANG2432006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1f68761763750692d7e8c8e703b63e7437df6e476dd14cd289aecb4f01fdf9. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/US3DF2529493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a491c713120ca0348f29cb0087ea7acc51c129febcb9ec351461b1d9829032. 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/FRX202570519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc6bd5df07cb383d6e20dc12d4e195c8697ab5ecb9eba80d87cf541f38a808d6. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/USANG2517322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9dfbdb5d0f354a35a8f3d67b399281916b1c71ffc283ac3ac6cdb2f4a095beb. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:30:06Z), 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/USANG2528260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93d0ac438439141d3ac9995a884a9e7e4259326975523b11aa5dc71f28cc302f. 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/GBKQU1916713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e88124d9997cf8a155411baf2151f09d7f62f39ee70b0ee76dbc8a38920394. 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/CA5KR1801760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959a3fa422fede47ce79c04adffa73e19f245c8c255cfb0b4ad7ca843df06624. 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/GBLV62019391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1253148251d7a56d480bd85b0da70ff5a7cd0001cdd75e39c148643e7286b8ed. 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/NL1LE2000623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf70ac6dd6ab836f8c474839532d1c13a288df873a74dcad475390e033d4f98b. 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/NL1LE2302889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc003c2073941ab14e320c3f4a2fa88c92c75811160597eb6866f1ff3c457ad9c. 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/USANG2432006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289d382245ea3bdc016bd5a226bbaa65651abf05bc814670a26efe0eb1ad7f27. 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/TCAEU2087031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7b2d62d984373236243037321bd80e8c2df9961b16b0ad35b9ab4e3abc66ac. 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/NL1LE2202600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2a3f028b596ce7f001b4834779a31162a94dcaccb294e83adcb8d12b44f4b3b. 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/NL1LE1900136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d97ec04f98a1a4d675d7f49458cbe857fcb2cc8e06fcec69c56aab3864f5c52. 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/CA5KR1906121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5db146eb0815aed8da9c3f12fb887e3a01a344aaa058cfe013a372e54a1278. 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/GBLV61811335.