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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089195e33588be8a31ac40daa11006ba5512b3f7d42c2550be44291d7dfd8c58. 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/22770c05-cda3-4db8-bbe5-d8ed15b5fb9b.json and https://artists.proofprofile.net/proofs/artist/22770c05-cda3-4db8-bbe5-d8ed15b5fb9b.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e0a5c8fc6374779f80e5f72d83fad490e592606eb6d06f142cf2595615eba4. 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/FRX202127091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea2d7f8337abe4d8d5353b1a17d580884d11947b9d0f2e8d592971f7f8db577. 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/FRX202127092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739b49e5defa5b77ce9ef9897f5b323a54d007b7219c65c6d6634ba8a4972bea. 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/FRX202127093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5cd34e373cfb1547eef83c13e5a544c8f96f30538333f71a0e3479abeb2cca1. 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/FRX202127094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0c09f8f9b52f67756f531490e99aff36af2412d278884980beb2356cb73416. 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/FRX202127095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5990ab3b8dfa2a6aa33c872da378fbd1a31a61c9c0bb41d74646ddc926eb051. 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/FRX202127096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d713e04e5cce1c6ab7df04ded9613e9b45421a631e8450463ec7e79efdd0ec. 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/FRX872194986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93707d9b21b1e5954d5f27c70299dbefcd0330ca6948a942dd8020256e671c6b. 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/FRX872194987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd5111629c1c3c4fdbdfcc403f02b7383d034edc256c9254dbf02142201ff82. 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/FRX872194988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ed629f9433d42799b438109739ed4afeafa098b9053922e56341817305c991. 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/FRX872194989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df560cfbea172440bb2ed89342b0303ad5f5b7fbc1027a08071861fd54e3ac6. 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/FRX872194990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x429324b83adeff62ce208224c3febc7a510c040adb0469fae5cde644b4a5181f. 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/FRX872194991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51388ba983e84bcd9cb1f98cc03336f5b788f5455b1195856a5300d6ba3fca84. 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/FRX872194992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c444dfdc1d52644391f9966908e598d0c2223efa3e0a35d5d26a560a5bd27e. 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/FRX872194993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5b912b77426ac26902b653ff216546a2f49e925ede3ac10821ef54b10f3106. 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/FRX872194994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42373c47a3b1110e0e7958f735916610deb3cdecb0bd79a7a06ef11d887f410f. 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/FRX872194995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e01bd52a0bbffd6598dc1feca6eeace27d99c014b15ee0ca1bfe5f01b10583b. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/FRS182152729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef4adee9b67a6f5ed7538303e0afafbf0d56414e349c909da9cdc6338a3688af. 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/FR59R2258965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef4adee9b67a6f5ed7538303e0afafbf0d56414e349c909da9cdc6338a3688af. 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/FR59R2258965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22ee1a1f1ed51dd590394f01c9e5960b79b282719209d3e2f9af12b074458e9. 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/FR59R2258966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25080f413b2830fa63528fd0e54b1d6ce2c403a4ba4e4ce9d127210e6f94aa39. 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/FR59R2258967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd93f6cc61816519605d6d35e4943f8f9959d8dbaa63321eae8df7d6a3741d0. 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/FR96X2251004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91adf10ae5f67775caf9b4299bf1f2f8003536f4cc22771b83bd570855355d75. 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/FR59R2258969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a0b1de1eb41b2368b40abe2924c84a80af8791640393a549c83136c2311a3c. 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/FR59R2258970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa942da138debcbfa06b27882612174b02be718360a210002c8f52616254df5d5. 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/FR59R2258971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87130e9ac7c125bac5bc12e7fe1dc1d0fef4bd9ee2a3ccbbb9b8f86bc99f7535. 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/FR59R2234480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x550744dece0736d26d038b8a4431f278bbbf911a8751e692443eecbcc4a50b68. 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/FR59R2258972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2693c8f7b07258a4bdd671e4497b3dc2910cf94ecedfca60e9405e70304f1ce. 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/DGA072288557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x538568731d54484de404f10ea47df8df0bcefda60e36b48d00458670ccb93d3f. 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/DGA072288558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf85d740eb4611f32e00a34d83d59ed27ea3aecc184f47b22a0b8e02a95797a. 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/DGA072288559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62f5303bcc6a51e6bafb73b1cde18abae9c44e84a17f8abf0706cca5214dda8. 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/DGA072288560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83cfaab6bcd5879f414fe6198366db8f8bcea472bdc4bd9177b3edb8fab5d227. 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/DGA072288561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x195eb033be171f2ccea9c83c37d59c18e57892afe201ef125a7c84e74b6665e9. 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/DGA072288562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2637e7c2839b4c4fddd145b4c276f357d64205b5c4b1693cbee76226b946f166. 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/DGA072288563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66002132ede28d9e279dac64c8d0932b93958e1f21a08e990f445e1e23e05220. 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/DGA072288564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83258edee4c9d78fe44c24f59c53f1a18d29e41263f0491171c6f80fdb5234f1. 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/DGA072288565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef03f8360da32b97e8635622c0404e2f76ce6cf7d49d7db7fa9242d99d0bec6. 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/DGA072288566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ff151de3e1adb1c34836f51c82d1e965db4bdc1975a2645e245ab95dc34164. 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/RUB422303136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b49f4823c2e1cb26abf41584bafb4aea49563fdde5c838df34eec252e2771e9. 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/RUB732057406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40db8a74372fd8459c7c00924a2e57eb8549567c427a765abd9acd8195c3384e. 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/RUB732057416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b35a88bb8e5d31e65a3610335598bde91b48205dbd0b90f5465e44c4e922cf. 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/FR59R2289301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef71708f1484ee093b69b2dfea7766236ffe10485723af91d5b10aa90fb560da. 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/FR59R2289316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c8a0cdb8c7580f4cc192dc993f4391cd9a44b04dcd5fd071a91f3a44949b79. 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/DGA062293561.