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 0x470381581dbbe739b597dc49f4003216f29983a7f4cf6d395fc4fb31c95e9280. 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/9524b4b9-d4cd-4c0f-8a0a-0202256ef384.json and https://artists.proofprofile.net/proofs/artist/9524b4b9-d4cd-4c0f-8a0a-0202256ef384.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 0x3b2867d97487211dfc0d35be65c4236673397a0525f375459bd483c6f94a3fc4. 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/IDC300301802.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0693a5241211523f60639e6adc3f611999b65a4f98f885df7d833be411734f1. 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/FRX762122856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed85a186abfd21105bae65afcb52ad38fbf0304c2ca890996640c6ee9143a4d. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/FRX452137988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e08de5faf9428b333de669773746a14eeaf68ca0a6297e2a800283e36a3093. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/FRX452137993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a0dd41a4ec9ad0e285a421d8db3b88f9eac71f6566bae52d6b0a7c631aecba6. 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/FRX452137995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc85296f6b5fb89d5dd494e62c216b2881dd3eb391c8bc7b13f0aabc86c89ea0. 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/FRX452137996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84acee59cd580d1c2cb7d4f4bf8c18f51d73f7d48b98af6fbc5bcb96aa2596dd. 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/FRX452167852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a85a5b93f0fdda0ef961d6f12a33d2b304523b1b128d345581e639bd7eb2902. 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/FR6V82445450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57831def2815c3184cd2d7ef4233c279229a4c3153c2641ea608305d30fcb2be. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/FR6V82445444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a5446a8683b327816e91fb903701ba36bceec58eda5ea0b0bc79180b778ef92. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/FR6V82445446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5edddea25a0d5fab03e06c77a9f8fe5ffe41b41574654e9992807ec9e557af08. 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/FR6V82445448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87335f9d132b9a423d3b3a0f77428f3edec9f4e043b4357cdc86a713050ea569. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/FR6V82445454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93e69ecd81e8e2481ffdabe77cf9dc779f91db2b71b3e4b002284008dc06b4d. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/FR10S1424124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77cb1601ca7863ab070abf7278c94e735966b4245cebdedc305f053eb40c209. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/FR2X41976386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8756807e300f8bf50b513d1d8ae0e719b6513d6de4d3c35331132ffd9d17e4. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/FR10S1770534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e64a6435732f760ae9c7cc00c2fef10ac9c56821fb2726d2306f5dc4af5b397. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FR10S1795477.
Monata Hits Rita Sugiarto Antibiotik, Pt. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313cc3fb265dadf6ab57c0fde3805aaa4a4e831ed3046a3246ffac062debb341. 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/FR2X41856054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0af1bf3074a46f44c3ae04ee34b846a22f297e7e476db16cda5ef4fdb85bd04. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/FR2X41856055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20b6c018e97c3248c392dd7e44eab89806b52943b5c6c9b4c73e8def922eb51. 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/FR2X41856056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294b3705589bc852103d58eee6a247bb18071d762142d8247d8ba65d85bb7253. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/FR2X41856057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b9e8d373b767b70566c79651519ab2af7170ce6c66795ef7444ed4d023b33d. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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/FR2X41856059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05d6edb03e7f288abd98ddacc6e50fdebfd46917f4617c583d8d6cf768cf63a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR2X41856060.
Ini Dangdut S01: Atraksi Tinggi, Nada Juara
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x925c42ef136427130112d5e39b130b00af7633d217589572e141b61545a22f46. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QM6MZ2429122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b40177381cdae67838404f1232dffae20a5c218adba3b6b8e3395acf2bfd3a. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/QM6MZ2429123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x924282e2c9a804c51e3d322d49b0643c29e55a349c3a3b7f91b1eafe2c1fe795. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/IDA881908194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f37a7f37e02b3054d511433226595464b48ebc55879f22c1f9afdd5fc423722. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/IDA881908197.