Woo Hyo-eun (), better known as Oohyo (), is a South Korean synth-pop singer. She has released three extended plays, Girl Sense (2014), Silence (2020), and Oohyo Returns (2023); and two full-length al
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 0x9fb180720d47059a4a7dfa3ac72afef13c44830dea6727e87ca90778a6b6b1d3. 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/d47b8603-0ae3-432f-a008-a06e31d5b7ad.json and https://artists.proofprofile.net/proofs/artist/d47b8603-0ae3-432f-a008-a06e31d5b7ad.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 0x426fb24af51103f7aa37ea04d54751ac744e1dfa312223b6b3153ab1415adb16. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/GB32E1402508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe6ba2a254d1882ffd2fc2977969c4239627155a1ceca541c055f3427490195. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/GB32E1402514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b689da89e8b3cdae5c0c8d59c34555995a97774e1ba145bb3613abf9603d0c. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:52:43Z), 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/GB32E1402515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4b2f5515685643415544a804444d4a6682ffc84ac27cc8924966d28ffac7a6. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:11:24Z), 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/KRNAR1500216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9d562b4d89212b0c7722eea1b3cca11623f43cdf639fb0bee3468f25eced53. 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/KRNAR1500218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe060ddad2df7a0005624e1da04fa3385003ddffdf4fcba1707f3f4cd9c7e42fb. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:45:32Z), 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/KRNAR1500219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3b92486523ea941ce61653fabfe665a0ee63cf56492c766b543dd2569e4669. 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/KRNAR1500220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e2baece867930108afbca165977bd5dda9bb2a61bcd1d7183934d8c515ddad. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T03:03:11Z), 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/KRNAR1500221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec82a69d8977a1ddae64851fad0a6ccaa4b74e2e17fac6df734602919b553e27. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/KRNAR1500223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9be6f5284a46bb2062d0379570683cc3183ed9a5767094000ebb4aa04c581243. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/KRA381700535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf839889ec3177741afb0591ef23f53299c18a862e1a55300aefb5a173d3bd82e. 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/KRB001700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79db6779646e29c04408867146d304b407c7198c1ec1c12ef427d34d5123633c. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/KRA381800167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa412a68ac0b20e86bc9139956b2018c0ed1ef71927972cdc4f8138f46f5ed28b. 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/KRA381901516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c25452dd98182f87646ce27f973dbc766ebb366f2a1580fd79487c11f64bea. 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/KRA381901521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a0a481c1f2c377e5b8a286397f1a076750cede0f71eb0c0de987f6099cadf2. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/KRA381901523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdefa8d81be00e4a3de08d7963f56a918ce336593b572d5464697a86c5b2c0802. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:07:13Z), 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/KRA381901525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54811965fdb5e0dfd75b67a87c441ddedf71a278965d867659a8de9ee4dfd37e. 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/KRA381901526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d924b961e121d3bdc71fcdbd8489d249abaeb75670235e609e22632ad328f58. 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/KRA381901527.
HOSPITAL PLAYLIST (Original Television Soundtrack), Pt. 11
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dcfffb007c5d9143ff19d9fb5784db689fc31d2b1f3971f2a64685df4fb84ff. 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/KRA382005771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79cc8ba9221485dd551fe0025c694b52d9478a6916e3043f76c3bd8efcec75b9. Chain 2 (Bitcoin): anchored in block 956426 (2026-07-03T01:37:49Z), 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/KRA382005772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7033e1fc6bd3431d4ea7838bf82ac957adf219fb39c81086312f8c958cdec82e. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:28:10Z), 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/KRA382005773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68756ffe255e1a8833a5431553c424c179fc45f8c30d23fd18f9ba927fcf3683. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:59:21Z), 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/KSA012123066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d9a4a95fd77e3f2da87b8c1ee3471756ccc8ab0f02b22759823b6fc02f80e3. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/KSA012134499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33b1c5c966b30772740e295234ca8b8d96ef321ee23413f7267462891c6c76a. Chain 2 (Bitcoin): anchored in block 956426 (2026-07-03T01:37:49Z), 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/KSA012164482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04bd17743a1c2afef3d7f04fe978931b292b3757a6829c15423b6161f753fec5. 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/KSA012253137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354861d8370ca16c9af864dc5d58c284a56c885badcfdd203e91ec23ce3a6ce8. 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/KSA012278916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa41221f219adea5ec1b2b71845f277c334b33d78146e22d9aff2a2dbadfd1b1a. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/KSA012278917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d39ab5c334ee478a9dcbf61aa001fac442d0acefea843a7f85456f1c1497a3c. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/KSA012278918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x331ab9546d649e483ed4cd1e4f5ea6eecbee7ded27149fe77f6ab8297cbff6b9. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/KSA012278919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b4d1892273c0e9e793b3eb5ea3c0dc6dfbd80b29bad8c75608962d13d47716. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-17T08:48:35Z), 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/KSA012278920.
Call It Love, Part 4 (Original Soundtrack from the Disney+ Original Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x660c451f89e79cc17375cdee82496c010c99ea1c77cb6961862c22fe04f18919. 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/KRB472300396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e26fe588650f2505c41cbf2792f8b00354620fd834ec2b0fd8ddc3620efeb5. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/KRB472300399.
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