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 0x147cf8c9d9bb4bb829f62e1cb13defd3c173b026aa9fceffbe08004430134ff3. 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/bae7f274-4ff7-43b8-bf31-373a215a023a.json and https://artists.proofprofile.net/proofs/artist/bae7f274-4ff7-43b8-bf31-373a215a023a.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 0xaa79798f1d2c387d166e75ce99145da54af7024534f80fda3bf4cb9492e20290. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/KRA381905215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52c05538e0791ac392b90f819923408932d789f7b7de9510b2d6ae0a0571edf2. 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/KRA382006520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe711ff9905cdff688d56deffe59b1de221a2d144af5e1dd0a70e92a792acb759. 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/KRA381902074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff91d215962dc0077903b1eb9290b630aa986069664c707a78de10a4873dff89. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/KRA381702536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7741e3fc88ff6a70232794962afd704d2f26e62bf3c6f7b41f9a42f910a67d7. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/KRA382001351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbadfec3a3657bf13628d5e46bbc702f76acc8777ac9e87f0cdf1d0d3bd913f03. 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/KRA381903497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747df5991736dec85512c06b4d05b977a8e082a97a61d17d46078290d0005095. 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/KRA922100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc1972bf7ea01d9e698d6716c4c6687864a34c0f2fcb92c56e948d56f8635b3. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/KRA922200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2205b1a7ff137b96ec2627c3180b471d9003888836947257a6a3f613e9737942. 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/KRA922200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e9fabd2fb4534ec00e42b84b3a00ba5521c82bf3f016de938d67a29e0cb5d3. 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/KRA922200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1cc646acfa5860595b20e07dcef01988fd620d374a093244c0afb999b0e7bee. 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/KRA922200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b65c756815685e0a0c97cce4f5f8866e97eaf8ea9dfc14237fd40e1a716d90f. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/KRA922400007.
MapleStory M : Erel Light (Original Game Soundtrack)
TIME LAPSE (Prod by BOYTOY) (feat. WH3N, TANGTHEAWESOME)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb3cd8c4b4e7da3950bb98b40cbabad7b0b136097e5748601564c0abc3bde24. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/KRA381903641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38165a2ce681a261eacd4d4146fb81fcdbe6b8693aee75b4e03bef1d83981fe. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/KRA381903643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294fc081c720b1d8e34845751c227c866bfd908fbc703382f2959956e4856677. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/KRB472200012.