Costantinos Tsobanoglou (25 January 1995 – 11 March 2023), better known by his stage name Costa Titch, was a South African Amapiano rapper, singer-songwriter and dancer. Biography Costa Titch's fat
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 0x8bde70b638d99b0eed3c7e162fd26299ff6c1801f3f2dee76026b293c67723b6. 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/d708e9b7-433e-409f-a5dc-6f039f2e4c92.json and https://artists.proofprofile.net/proofs/artist/d708e9b7-433e-409f-a5dc-6f039f2e4c92.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 0xd447ecc8beabd8945a5a661ef34f8c13459080119a74b74bcd3e461a587710dd. 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/GBSMU4185332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ab5e56c56bf2e383feb318b8dcef3b65e277495152aa9b68bfb23ff8ae7a54. 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/GBSMU6667111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee00e17dcaa0dc416d076ed5cf19b45947a07b0c2dda58a1d50f05799bca8094. 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/QZHNC1930249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27cc58d0a4df3492238b5f52f8bbad20ec06036113f92c304d387578a1445511. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:56:12Z), 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/QZFZ72002395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb922e38a2feea543c19c4fec1959f0448aa16518a3c21de1b11d3da1d7d9d83. 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/QZMEM2020040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b4cff5f62d5bc30755fd522d62cf71c3522baa7aa2b202aa91d4a6d34ec1cc. 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/QZMEM2020041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76adf13ff4c8eab1be459f5964e4c1de5734e093d93ade81ea35e212f34c18bc. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:35:46Z), 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/QZMEM2020043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27cc58d0a4df3492238b5f52f8bbad20ec06036113f92c304d387578a1445511. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/QZFZ72002395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ddd89dff13cdd35238eb6564daed8c77607affc0cbddd82b5eaf0dea7d3cad1. 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/QZMEM2020047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa365c52e7d6797bb1d727554413312ba49642c766fbaa47304a70e7086f8d460. 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/QZMEM2020048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5bb027d268530d19736a4ef05b6d840ad604c8ff537750d89041e1d51750725. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/QZHNC2113441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f87e1953526fbcf98b0c79f068b0d5680fbc745caaf58fa0bd2990f91e3674. 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/ZAIF62100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eefad9b8f83232d76280af0dafba1225dcffdb37e63dd4009246f13a9f07833. 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/ZAIF62100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846663ad98908f09d260a5151a6198a041d4c7ac3b38d0826bd41f77eacf8f86. 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/ZAIF62100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc26024ae89c3ab0ca0d9b75a13e8411fe795bca637cc0abf4767e79b0109701c. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ZAIF62100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06624047e45e6e0734c4c1391c1b59d4949e6615dfa5ec228d53d5cf445452a8. 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/ZAIF62100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x287dbbb61a1fa05e17c3a2cc04d91dbc79537cdaa53cba0de92ece0314f19a80. 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/ZAIF62100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296b9cfab5398e87c6e63e86c903d6fc8ef24dd09d65f831a96fc08941ab9361. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:08:05Z), 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/ZAIF62100008.
Super Soft (Kooldrink & Jose Rocha Remix) [feat. Jose Rocha]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d3a43c12ee129d6f0fc006b60215659875ab8fc693108aaa6c8b9f0261ddd9. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/ZAIF62200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa13f68a9a62878adae6e695a5d88004248d9e8fd4b61c75c637cd1b81dbb5e5. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:33:43Z), 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/ZAIF62200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4db250443ca9ed55173bbaa0a9ac411889fe65e3170020e58558d6605368d26. 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/ZAIF62200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97cf28d501111f9cdc9fdb90d265ce79b76756aa248763e15d3cb2878c3e468a. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/ZAIF62200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd8e076b93b3a8efc67bd63c8091abc99594c5d27ab18a8055fcc7cf83a4e9d1. 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/ZAIF62300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3e6a4d11ed6d2a2a57f59113f0eded57343a99bb32bf59266c21d2cc64bc8e. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/NL4CP2538341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b037e7868cb6c9f62216bed5a114ea2f9d80850c22f973c4797ee862400588. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NGA3B2215004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x627ec69815aa8a16226a0b6d333d4de0a96e534a73f4d27dbe0df95eb1f30136. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZHN82083018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b5d138c3255134ee140407545c0af486592011add3b82e8e652e1c9e24b3ef. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US23A1554666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe6f6ff28dfea62c4ef9216ad3ee1568f2349e88bded12fb1d48bdfa02d1ea27. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZA6EE2000295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd104d78950ac5887cf71749025c7e4da9f892293fb9ce407536e3d4179d97c67. 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/ZA0I42400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87838430eac69cf48ed7692dac0ba9c645ecaff0006def48a65176a0445ce33. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZAQLY2100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6a41d18dea6385bf9e13ecac10f62630badcbc9decf3e095b52caf4dc57e30. 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/ZA56E2201558.
Ang'na Stress (feat. Costa Titch & Yanga Chief)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ae14d0d327ea1dff2218199305b67a2b6f41413b92cd368c66d3f3ce0e85b0. 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/ZA56E2002609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255a476003c1c28ba83af541de83b441cb4de21ec601a068d84426e54020eebf. 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/ZAQ652000886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d8e5f27ddeca643d122c61e822c57b77c588cb75f89a0918994b7d1b8a9c4f. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/GBKQU2339643.
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 0xb38ba0f70d0dcc411b3b3f992cad255a541731cc8c9f6782c89fce6baec54d8b. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/ZA56E1900016.