The Seoul Philharmonic Orchestra (SPO) is a South Korean orchestra based in Seoul. Founded in 1945, it is one of the oldest orchestras in South Korea. Its first foreign tour came on a 1965 trip to Jap
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 0x5af7e603247f7fee18add8d707d631602544033add3a10f002e03de97e1df8d3. 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/7ed563ff-5ebd-4f90-ba6f-67fe859d1136.json and https://artists.proofprofile.net/proofs/artist/7ed563ff-5ebd-4f90-ba6f-67fe859d1136.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 0xe821be90258ee7ed2de9cf9b3e9290919ac8ad2de387180faa4aaf363636b839. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SEAEC2242020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ae9adcc69f1b2d84ef66bee97fea75050d66a87ba2ebeeb7b93be83dd45fd7. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/SEAEC2242010.
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
Symphony No. 5: I. Trauermarsch - Live at Seoul Arts Center, South Korea, 2014
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de2821814dc914f90109b81ed1da4368c3bc66398492819dc29088d7f5eb723. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/KRUM71400187.
Symphony No. 5: III. Scherzo. Kräftig, nicht zu schnell - Live at Seoul Arts Center, South Korea, 2014
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0014c17fa6b0726acca57aae99556a21ee13b1b3b4ae8a1801d6ca573a23f594. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/KRUM71400189.
Symphony No. 5: IV. Adagietto. Sehr langsam - “Decision to Leave”/ Live at Seoul Arts Center, South Korea, 2014
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62a5447bcd201749508585df604e53c2ff583030cadc08ef3720a506aa64579. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/KRUM71400190.
Symphony No. 5: V. Rondo-Finale. Allegro - Live at Seoul Arts Center, South Korea, 2014
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x117fb4469cc28efbe2564f025dea55d459b969f260882d674bcc1de22100e011. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/KRUM71400191.
Symphony No. 5: II. Stürmisch bewegt, mit größter Vehemenz - Live at Seoul Arts Center, South Korea, 2014
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1bd14e691986362479b72667d03e86e2ea391fe1bc8e8c0b6e1e6a76394ed51. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/KRUM71400188.
Tchaikovsky: Symphony No.6 "Pathétique" / Rachmaninov: Vocalise
Symphony No. 6 In B Minor, Op. 74, TH.30: 1. Adagio - Allegro non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb7140d4e309e911839c3d1ee4c57482696bc56e17f4de81e6ad611cea6a1fe. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/KRUM71200036.
Symphony No. 6 In B Minor, Op. 74, TH.30: 3. Allegro molto vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0ca3ea3d042b065c3962fcfd589c9195e8ed2d28a89d12139c0b57c2673516. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/KRUM71200038.
Symphony No. 6 In B Minor, Op. 74, TH.30: 2. Allegro con grazia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc76564983fc6cefe47a9a85dc042dc662409070020a6f820cec806ed69e83f. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/KRUM71200037.
Symphony No. 6 In B Minor, Op. 74, TH.30: 4. Finale: Adagio lamentoso - Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcccd79974616a514e7fbe49f6db3a6574ce93f2f3f7181b7918a9dbb7f9c2f2d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/KRUM71200039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d9af727715081f6561bcfda9dda43ed8f737df5093cab764b63af1c2f893027. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/KRUM71200040.