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 0x4698e3a102daa810a5ec8df16737715fd7158b9d423ef57344bab9219e899ed2. 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/1c8547df-9cd7-4741-a91b-07a81ef96042.json and https://artists.proofprofile.net/proofs/artist/1c8547df-9cd7-4741-a91b-07a81ef96042.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
SKY Castle, Pt. 3 (Original Television Soundtrack)
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 0xf88d331c12f7519638e3e06332e0ed8945ecd48f107d796a3b0d07e958a3ebde. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/KRMIM2004441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069acab0c97eb5b3e3ff4b15c6f866b5033c988362399f36bc59ddb5c65a9068. 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/KRMIM2004442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x350a96fbf3661ff1fdb11928ef52b1683abdc5bebf211bbc838504a5b890e5c7. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/KRMIM2016053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f5d576de645f6f37b13e211aac2912cffa6f7d5e9678af159f635f080bf924. 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/KRMIM2030030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb79dd4c9ff06e84d7e4722fdd1b916f90563a129aac337ecd619ba674b1f96. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/KRMIM2030031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c50922dd942041c708205bb9897e1a5a2b2aed1bd0d882446de1354552fb09. 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/KRMIM2030032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c22eef160151f815dbeca2fd999afd3b3b258592e7ecc0fa19a27232273379. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/KRMIM2033361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cff9b63d037566560135483d4bf51ece8a8d6bf7274353dd2f51d52a8a3e582. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/KRMIM2033363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce0f406dda054891393ed7d04771767994e6e67d2e743ba731c996021a26c85. 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/KRMIM2033364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47de5cf92bc8e7dfcf9392c62ee38c511915ead32bff3f139f6e63cd83f9bdf4. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/KRMIM2130835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc115cf99df083424011e637ead3a16d03f94a59172a0cb8c12cc016050f922. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/KRMIM2177999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b25f073c0a5f5c21d7d7211c91704b8c00720e0bc6b85c07f90b2c2b583246. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/KRMIM2206029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab16ddfc6661fe1aeeb354dbd38a8c2084628e5a8993c7e3b75eb5407ab777c6. 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/KRNAR2209047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f75aac3e2dc67f20eb64c4e12e4521f1bcc99373534e1ade9b6bd3e9248bfb. 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/KRNAR2209048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b756197368ec94d226dfaae6fe4004cd8716e215603a85a5f3ac6c7f4a9434. 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/KRMIM2258647.
Letter To Dolphins (Unhappy is not me anymore)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf621fb3539a50f1f501f544effe82c7ba859197d90f90ac80cedd39a9b972177. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/KRMIM2301764.
Unstoppable (from “Decoy, Original Coupang Play Series Soundtrack, Pt. 1”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a033f9563e6626ad4cb7de06ffde70ccf0f4804578d70ec47c9baa59b5b766. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/KRMIM2327460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8cddeeabafdfade7cd5091349446e1785a019ccb3e2fc115f0469dc67f2c0a8. 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/KRMIM2341245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6c273cec4dd9c9114e3ee8039debcc7955fa4d32ad963f1f50e77e049cff6b. 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/KRMIM2360349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x694ba5ce159c2b6afec78004163fda34e7b92711196861f8f39e49645bde8cee. 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/KRNAR2333025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0416033c3693d73c862250d768ec8c04ef7de23ebb0d7ff05e03397b5996ded9. 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/KRNAR2352910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4803067c611d420fc3cc0452c86fca6a70dce0af7196fe4af58218432ab135a. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:11:30Z), 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/KRMIM2409529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe245206ef1249ff1509b10374cefc716b9b38fd4ea74866796e16567e12ef859. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/KRMIM2426461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc08b8de46ad9e49e461a067c4eddee70d01f2291fb8bf53617e67d52fb52476. 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/KRMIM2465510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b65c5e302f3439371809fa574941b7cade404a636a508705905ef8f8ed3273. 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/KRMIM2465511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e15c8662dafc86afa71f5f11a9b7c14a0fe58e9195a6279f22322c02e4ff4e. 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/KRMIM2465513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5954241393c52f57884a2134bfbea040c650fb6c7f3bbea7b8fb38778b132ef. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/KRMIM2465514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4803067c611d420fc3cc0452c86fca6a70dce0af7196fe4af58218432ab135a. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/KRMIM2409529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1ee52813bdafcad6ec6507418cb253a2ad70a03ce9f97c34c5b25456e8e571. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/KRMIM2508832.
Loneliness Always Follows Me Wherever I Go - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0fb405132c4b02f8286d28c8cb9ed66aa93fbc19945003e3b6ea323f3cb439e. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/KRMIM2508835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5601a87a9a33ca182801917eeb73171d85cb88d5fe650370f00f01e66004ba7f. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/KRMIM2508837.
Dear Hongrang (Soundtrack from the Netflix Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6841ef7cac53cd18d448eadcc36542cd58136e3872e22f3b50fa64edad52ff29. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZ8BZ2513321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb14c2af0490a62eb67dbd22fcc120913092b7e365b8d612ec391639f4c95bb. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZ8BZ2513322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d600bcd77ecc98f91d01e65bdd2a90c8e16127d076e4b45752ed6dac78443c. 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/QZ8BZ2513323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e663235e75a3f002caa6bce083e47bdd7d291faec3309b0242505f426e82a7. 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/QZ8BZ2513324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75cf6b4e94672300f72e0a1bf796efe2ad4da83f726ace063bf207cf1458e148. 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/USL4Q1943275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2c6e77f287647c59d5bab1f4e4d8437ebe9b6bdc89b8062354445cf93ae5f4. 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/TWCT52438751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363ba0197e80aa828b855583a4e167f7a8e18fd8332c1304e86a5f4de0cfd7bd. 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/KRMIM2000678.