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 0x191e885708dcb1526ec1c6b0ae2583fd8a54f67aeba99b59d67004b5e229533e. 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/18e14dfe-71ab-492b-a5c3-46f4d992dbcb.json and https://artists.proofprofile.net/proofs/artist/18e14dfe-71ab-492b-a5c3-46f4d992dbcb.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 0xe303413972f54695c398d3ef8e7c7597a53bf0f13b388e8a062674367ca52daf. 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/QZZ792563972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04434d4f172e5855e26c220d166a3c5a2ae93438df0aa8614c8b5386b3f76a7e. 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/QZZ792577244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacbd4031311cb31bde05e5d17f26c6e0c8842f797ed23ad3a78a0d8c8a517a88. 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/QZZ792577264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x948e1276d3b5158ca00e0e49ee80b9bd7b377d9ba7d05185c3d7752d67fde4eb. 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/QZZ792577240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c775719fb10d3c1db5169b362b5400a273d2381aa4441dbf4bcd1b45d1db8a. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QZZ792577252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf080d97983cb8a6caa79b0804103bf1bab41ed096ab81114a88e2cedc0e9a74. 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/QZZ792574308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb73b989c336b9f647095d8661c43aac6549f06a690f8f988dc150cf734cc612. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZZ7L2529113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7690e9dc033c40656e010b4cced3b44422e836ea68eaf92c7ea039ae8d0b6f. 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/QZZ7K2506712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4073b134defe6eb10a4205751537ff87c21694f563a9855907d9cb18a1c2068b. 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/QZZ7K2506713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9bf738eaebdec36e9cea16ea22e32b14cb7bb92cc36866000bfaffc73f96be5. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:16:50Z), 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/QZZ7K2529709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c1fda8240ed70a6f038e56eb56296e3bf72079742803e0ef1f9550ec8cb4df. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZZ7K2527103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe84b8860fd085c9571900a889b2c7112ca021853c07c52cda62791316c5bb3fa. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZZ7K2506709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013a01371b6bf80c55ce3e75858055c1d6d60694ef63379eed6c96cc11d7faf1. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:27:21Z), 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/QZZ7K2506720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea441ef54cac95f7b7b18cfa9954866fb5c5925e8dda33ae3d5ba4a047a84fd9. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/QZZ7K2527073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6994c52a679e3de77f6a8dc3f81a5427c11328ebbf1efb284d03ebce826ed440. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZZ7K2580058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7297e51cbfe090b3023295072da23a9a3ce9ae8b156d6c11979d4c091d930d35. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZZ7K2504911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde42963fc9ca456b4692ef438a9e66fa7fc7ad153ae07b2fc27bc756f1b47194. 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/QZZ7L2546558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203ee80469c8d196d4e50f5bdc7277cebe2c4be3363bd772c9fcd68a6bf444d6. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:35:54Z), 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/QZZ7L2548957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29bbe921ab537df7d134934d03d649bf4889b9424e2b28608098b03c1e7e5f51. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZZ7L2548942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13242ac19e820ab5686dab6a078698b3ecb6d218539d3f92289cce42efb7fe5e. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:41:48Z), 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/QZZ7L2548923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eba1a1880febb444d480945ff0edd0eef5615d6f50c4f4582de60e81e9dd8b0. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZZ7L2546601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b746079caf7ce6cf5b071114b5f3a045059bc2cb0feb0f87da0b864ea826e0c. 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/QZZ7L2583428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8735c1c5b3a1f543024bcaaec8fd5c2ad0b3294dde2bc35b39a5a38baf1bbd1. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZZ7L2593088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1bf3ba5b030b3b9195c2743c9fa1de128ae0fd644ab348e26d6a841ff13e88. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:01:59Z), 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/QZZ7L2593042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ae7fd5177de23a12708ab0e98a07f50ed1eb262565becb3adb8345819c42b1. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:32:32Z), 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/QZZ7L2572020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa6da95e717f4646259bac6333423ab884f6c4ba8f74f70d6e20dbf0552e58f. 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/QZZ7L2593102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d051529271ba432bf79756821357fb7e0745f045e31cd8a8a3167336bfe056. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:46:54Z), 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/QZZ7L2577609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46009ba05eb58fca3cc23af1c8e3fc8f056f377fcf1c88a2ed61649aa0703c22. 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/QZZ7L2571953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2839ff6681792fd31b7fee5a8c56bbc928369c70d6e629bdcc588b97d52720a9. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZZ7L2592751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb70bd56e71042ecd3e8bc804629315d3cf0ec144f265e59e2f080f494c2448c. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/QZZ7L2593100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe864f8099da2249fa492b4b45e4c4f1f8ecebff5eb23a471304235631c26afb3. 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/QZZ7L2577610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dfc9d5c2f743f5c241ad75744ef380b65789226a4dc7956bed8427f7b301166. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QZZ7M2554233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0f3c111987668e2143fed5b8c793cc9a2c1a9d93ab7707af4fca271fdd1af9. 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/QZZ7M2554244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c5e3de276e2753f8577f163fd5a3576ae40fa4f81e9bbb9a9aea066ccd3b037. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:14:23Z), 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/QZZ7M2551781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14695af908edefab844c29abf732cf155e95e99cac70f589a14facc7db9b67b8. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZZ7M2554215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf56f2bc539a1cd708353dd5654f722a87582998e6ddcc827bbb55151cd7acd63. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:24:31Z), 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/QZZ7M2546763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d6fde6441ecd86e42f33ce78733b70481116018f96a94ab2bf6bfbd6baa4ab. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZZ7M2546765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc200d2422ef94e41ed57594d04c7d9259ca82af260eac29a9b89766d3e1578db. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QZZ7M2551767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47fd39700a6daec6f85c7e1744ebacf005d50a81fac0aaa422437841f1f66808. 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/QZZ7M2543436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e98f3c7769f22c6fa9cc87ebb662bc8261efe2fc7591c30c0870d964b4d91f9. 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/QZZ7M2578471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0014e4807baf800d979c051394ca5cab28a2d2b5c4921058aa2d230031e25fbf. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZZ7M2578612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6eed9a3d4c21f463b957a262234fac465f8b35124e9346e9aed7534a574c39. 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/QZZ7M2580902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140dc9392c5dee8c2fe242c49ebba778d0ed247b54de1bd90f63ef28476d4150. 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/QZZ7M2578520.