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 0xafd362e727c19339aace83b3b0eb71e652839e9a27b703091717d266f6a47040. 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/3e22559b-f817-47d1-aeba-c6ab34a36a16.json and https://artists.proofprofile.net/proofs/artist/3e22559b-f817-47d1-aeba-c6ab34a36a16.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Freche Mädchen: Sommersprossen-Kussgewitter
Kapitel 1.1 - Freche Mädchen: Sommersprossen-Kussgewitter
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 0xa3940b3ce7202f90528811d7d33077ba03efbdd3b02483efb1b1cd6addaeecb4. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DEVP81194164.
Kapitel 1.2 - Freche Mädchen: Sommersprossen-Kussgewitter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62474e0dbef9d96d312a38d4f00eac0e4be82b118f88b369913386f0602e462e. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/DEVP81194165.
Kapitel 1.3 & Kapitel 2.1 - Freche Mädchen: Sommersprossen-Kussgewitter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed87270dd7dedc0db7d7c0bd2b077eef7db6a9a92ee548c8de000bb1c411606. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/DEVP81194166.
Kapitel 2.2 - Freche Mädchen: Sommersprossen-Kussgewitter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71dafa8a7b91ec6be0291fca5523fd11cb5b5a88df051b890cce9fc8e249cc27. 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/DEVP81194167.
Kapitel 2.3 - Freche Mädchen: Sommersprossen-Kussgewitter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466b643e55795330aa92dab56635840a6154691f7d14ffefcbbf847147c04c5c. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/DEVP81194168.
Kapitel 3.2 - Freche Mädchen: Sommersprossen-Kussgewitter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4741c0ce3483c12f93bf65c1b7938b3cb5c43bdc58fe3c80ec168746b29722f2. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/DEVP81194170.
Kapitel 3.4 & Kapitel 4.1 - Freche Mädchen: Sommersprossen-Kussgewitter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb27074ca6923224a504b191ad65754f709c6f23bc20053995434729a5c7f9b. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/DEVP81194172.
Kapitel 5.2 - Freche Mädchen: Sommersprossen-Kussgewitter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x681aaa9ec4505218f2d0a54d856400bc4a38b5c949a34ee73477c711d066a3ac. 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/DEVP81194176.
Kapitel 5.3 - Freche Mädchen: Sommersprossen-Kussgewitter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7e83cfa70f009b9ef3a6754c88f449f9034949fc0ce7df1ce0277a28673c70. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:23:28Z), 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/DEVP81194177.
Kapitel 6.2 - Freche Mädchen: Sommersprossen-Kussgewitter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0698542ae961f29788a51f2e083ab3b0a61455a62c3d1b11e21b53d8e39ebbe0. 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/DEVP81194179.
Kapitel 8.2 - Freche Mädchen: Sommersprossen-Kussgewitter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e87e1cab5a7f00089c1237b63e328afd6089bea7532d936c2b66245524c6ef4. 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/DEVP81194184.
Kapitel 9.4 & Kapitel 10.1 - Freche Mädchen: Sommersprossen-Kussgewitter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8fe833e4cdf966a41e213d5b1273ec4416128ac19511258f6fd4db90c54c54. 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/DEVP81194189.
Kapitel 10.2 - Freche Mädchen: Sommersprossen-Kussgewitter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4105bdf7fb80d5591099f2ea4ad07297775d5250602047a057df0b4dece73e3. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/DEVP81194190.
Kapitel 11.3 & Kapitel 12.1 - Freche Mädchen: Sommersprossen-Kussgewitter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba854a87103e6c9f24d364055beb3147b20f417fbce8a3c072eef16ba4d66488. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/DEVP81194194.
Kapitel 14.2 - Freche Mädchen: Sommersprossen-Kussgewitter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3b26602f714ea7daa8ccf3847b374df629cd2d8a3746c8bfaf74f842fe00b9. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DEVP81194200.
Kapitel 17.3 - Freche Mädchen: Sommersprossen-Kussgewitter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff6b39fd6d28d7aca90449b1f827b05174ac066c4bcc747050c7af534f84c78. 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/DEVP81194207.